Home / 7,342.16-10,132.26-3,985

Finding the Fourth Proportional to 7,342.16, 10,132.26 and 3,985

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Solution

The fourth proportional to 7,342.16, 10,132.26 and 3,985 is: 5,499.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.16 : 10,132.26 = 3,985 : x
  2. Step 2: Convert to fraction form
    7,342.16/10,132.26 = 3,985/x
  3. Step 3: Cross multiply
    7,342.16x = 10,132.26 × 3,985
  4. Step 4: Simplify right side
    7,342.16x = 40,377,056.10
  5. Step 5: Solve for x
    x = 40,377,056.10/7,342.16
  6. Step 6: Final answer
    x = 5,499.34

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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.