Home / 2,487.10-3,726.15-1,185.70

Finding the Fourth Proportional to 2,487.10, 3,726.15 and 1,185.70

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Solution

The fourth proportional to 2,487.10, 3,726.15 and 1,185.70 is: 1,776.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.10 : 3,726.15 = 1,185.70 : x
  2. Step 2: Convert to fraction form
    2,487.10/3,726.15 = 1,185.70/x
  3. Step 3: Cross multiply
    2,487.10x = 3,726.15 × 1,185.70
  4. Step 4: Simplify right side
    2,487.10x = 4,418,096.06
  5. Step 5: Solve for x
    x = 4,418,096.06/2,487.10
  6. Step 6: Final answer
    x = 1,776.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.