Home / 7,342.36-10,132.53-3,985.20

Finding the Fourth Proportional to 7,342.36, 10,132.53 and 3,985.20

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Solution

The fourth proportional to 7,342.36, 10,132.53 and 3,985.20 is: 5,499.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.36 : 10,132.53 = 3,985.20 : x
  2. Step 2: Convert to fraction form
    7,342.36/10,132.53 = 3,985.20/x
  3. Step 3: Cross multiply
    7,342.36x = 10,132.53 × 3,985.20
  4. Step 4: Simplify right side
    7,342.36x = 40,380,143.61
  5. Step 5: Solve for x
    x = 40,380,143.61/7,342.36
  6. Step 6: Final answer
    x = 5,499.62

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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.