Home / 5,427.68-7,489.68-4,311.32

Finding the Fourth Proportional to 5,427.68, 7,489.68 and 4,311.32

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Solution

The fourth proportional to 5,427.68, 7,489.68 and 4,311.32 is: 5,949.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.68 : 7,489.68 = 4,311.32 : x
  2. Step 2: Convert to fraction form
    5,427.68/7,489.68 = 4,311.32/x
  3. Step 3: Cross multiply
    5,427.68x = 7,489.68 × 4,311.32
  4. Step 4: Simplify right side
    5,427.68x = 32,290,407.18
  5. Step 5: Solve for x
    x = 32,290,407.18/5,427.68
  6. Step 6: Final answer
    x = 5,949.21

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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.