Home / 4,087.71-5,641.47-2,515.77

Finding the Fourth Proportional to 4,087.71, 5,641.47 and 2,515.77

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Solution

The fourth proportional to 4,087.71, 5,641.47 and 2,515.77 is: 3,472.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.71 : 5,641.47 = 2,515.77 : x
  2. Step 2: Convert to fraction form
    4,087.71/5,641.47 = 2,515.77/x
  3. Step 3: Cross multiply
    4,087.71x = 5,641.47 × 2,515.77
  4. Step 4: Simplify right side
    4,087.71x = 14,192,640.98
  5. Step 5: Solve for x
    x = 14,192,640.98/4,087.71
  6. Step 6: Final answer
    x = 3,472.03

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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.