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Finding the Fourth Proportional to 5,321.40, 7,344.40 and 4,060.07

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Solution

The fourth proportional to 5,321.40, 7,344.40 and 4,060.07 is: 5,603.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.40 : 7,344.40 = 4,060.07 : x
  2. Step 2: Convert to fraction form
    5,321.40/7,344.40 = 4,060.07/x
  3. Step 3: Cross multiply
    5,321.40x = 7,344.40 × 4,060.07
  4. Step 4: Simplify right side
    5,321.40x = 29,818,778.11
  5. Step 5: Solve for x
    x = 29,818,778.11/5,321.40
  6. Step 6: Final answer
    x = 5,603.56

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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.