Home / 1,910.85-2,637.08-1,071.51

Finding the Fourth Proportional to 1,910.85, 2,637.08 and 1,071.51

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Solution

The fourth proportional to 1,910.85, 2,637.08 and 1,071.51 is: 1,478.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.85 : 2,637.08 = 1,071.51 : x
  2. Step 2: Convert to fraction form
    1,910.85/2,637.08 = 1,071.51/x
  3. Step 3: Cross multiply
    1,910.85x = 2,637.08 × 1,071.51
  4. Step 4: Simplify right side
    1,910.85x = 2,825,652.23
  5. Step 5: Solve for x
    x = 2,825,652.23/1,910.85
  6. Step 6: Final answer
    x = 1,478.74

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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.