Home / 1,747.91-2,410.85-1,187.40

Finding the Fourth Proportional to 1,747.91, 2,410.85 and 1,187.40

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Solution

The fourth proportional to 1,747.91, 2,410.85 and 1,187.40 is: 1,637.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.91 : 2,410.85 = 1,187.40 : x
  2. Step 2: Convert to fraction form
    1,747.91/2,410.85 = 1,187.40/x
  3. Step 3: Cross multiply
    1,747.91x = 2,410.85 × 1,187.40
  4. Step 4: Simplify right side
    1,747.91x = 2,862,643.29
  5. Step 5: Solve for x
    x = 2,862,643.29/1,747.91
  6. Step 6: Final answer
    x = 1,637.75

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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.