Home / 7,531.40-10,390.02-5,294.72

Finding the Fourth Proportional to 7,531.40, 10,390.02 and 5,294.72

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Solution

The fourth proportional to 7,531.40, 10,390.02 and 5,294.72 is: 7,304.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,531.40 : 10,390.02 = 5,294.72 : x
  2. Step 2: Convert to fraction form
    7,531.40/10,390.02 = 5,294.72/x
  3. Step 3: Cross multiply
    7,531.40x = 10,390.02 × 5,294.72
  4. Step 4: Simplify right side
    7,531.40x = 55,012,194.74
  5. Step 5: Solve for x
    x = 55,012,194.74/7,531.40
  6. Step 6: Final answer
    x = 7,304.38

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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.