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Finding the Fourth Proportional to 1,860.76, 2,562.19 and 1,612.09

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Solution

The fourth proportional to 1,860.76, 2,562.19 and 1,612.09 is: 2,219.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.76 : 2,562.19 = 1,612.09 : x
  2. Step 2: Convert to fraction form
    1,860.76/2,562.19 = 1,612.09/x
  3. Step 3: Cross multiply
    1,860.76x = 2,562.19 × 1,612.09
  4. Step 4: Simplify right side
    1,860.76x = 4,130,480.88
  5. Step 5: Solve for x
    x = 4,130,480.88/1,860.76
  6. Step 6: Final answer
    x = 2,219.78

Related Problems

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Half scale
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Double scale
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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.