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Finding the Fourth Proportional to 5,127.67, 7,685.02 and 5,072.59

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Solution

The fourth proportional to 5,127.67, 7,685.02 and 5,072.59 is: 7,602.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.67 : 7,685.02 = 5,072.59 : x
  2. Step 2: Convert to fraction form
    5,127.67/7,685.02 = 5,072.59/x
  3. Step 3: Cross multiply
    5,127.67x = 7,685.02 × 5,072.59
  4. Step 4: Simplify right side
    5,127.67x = 38,982,955.60
  5. Step 5: Solve for x
    x = 38,982,955.60/5,127.67
  6. Step 6: Final answer
    x = 7,602.47

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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.