Home / 7,342.61-10,132.53-3,985.35

Finding the Fourth Proportional to 7,342.61, 10,132.53 and 3,985.35

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Solution

The fourth proportional to 7,342.61, 10,132.53 and 3,985.35 is: 5,499.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.61 : 10,132.53 = 3,985.35 : x
  2. Step 2: Convert to fraction form
    7,342.61/10,132.53 = 3,985.35/x
  3. Step 3: Cross multiply
    7,342.61x = 10,132.53 × 3,985.35
  4. Step 4: Simplify right side
    7,342.61x = 40,381,719.16
  5. Step 5: Solve for x
    x = 40,381,719.16/7,342.61
  6. Step 6: Final answer
    x = 5,499.64

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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.