Home / 4,087.19-6,129.65-1,124.92

Finding the Fourth Proportional to 4,087.19, 6,129.65 and 1,124.92

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Solution

The fourth proportional to 4,087.19, 6,129.65 and 1,124.92 is: 1,687.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.19 : 6,129.65 = 1,124.92 : x
  2. Step 2: Convert to fraction form
    4,087.19/6,129.65 = 1,124.92/x
  3. Step 3: Cross multiply
    4,087.19x = 6,129.65 × 1,124.92
  4. Step 4: Simplify right side
    4,087.19x = 6,895,360.25
  5. Step 5: Solve for x
    x = 6,895,360.25/4,087.19
  6. Step 6: Final answer
    x = 1,687.07

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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.