Home / 1,910.76-2,637.21-1,248.18

Finding the Fourth Proportional to 1,910.76, 2,637.21 and 1,248.18

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Solution

The fourth proportional to 1,910.76, 2,637.21 and 1,248.18 is: 1,722.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.76 : 2,637.21 = 1,248.18 : x
  2. Step 2: Convert to fraction form
    1,910.76/2,637.21 = 1,248.18/x
  3. Step 3: Cross multiply
    1,910.76x = 2,637.21 × 1,248.18
  4. Step 4: Simplify right side
    1,910.76x = 3,291,712.78
  5. Step 5: Solve for x
    x = 3,291,712.78/1,910.76
  6. Step 6: Final answer
    x = 1,722.72

Related Problems

Find fourth proportional to 955.38, 1,318.61 and 624.09
Half scale
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Double scale
Find fourth proportional to 1,911.76, 2,638.59 and 1,249.18
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.