Home / 5,127.57-7,072.02-3,711.47

Finding the Fourth Proportional to 5,127.57, 7,072.02 and 3,711.47

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Solution

The fourth proportional to 5,127.57, 7,072.02 and 3,711.47 is: 5,118.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.57 : 7,072.02 = 3,711.47 : x
  2. Step 2: Convert to fraction form
    5,127.57/7,072.02 = 3,711.47/x
  3. Step 3: Cross multiply
    5,127.57x = 7,072.02 × 3,711.47
  4. Step 4: Simplify right side
    5,127.57x = 26,247,554.71
  5. Step 5: Solve for x
    x = 26,247,554.71/5,127.57
  6. Step 6: Final answer
    x = 5,118.91

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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.