Home / 5,432.40-8,148.33-1,921.32

Finding the Fourth Proportional to 5,432.40, 8,148.33 and 1,921.32

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Solution

The fourth proportional to 5,432.40, 8,148.33 and 1,921.32 is: 2,881.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,432.40 : 8,148.33 = 1,921.32 : x
  2. Step 2: Convert to fraction form
    5,432.40/8,148.33 = 1,921.32/x
  3. Step 3: Cross multiply
    5,432.40x = 8,148.33 × 1,921.32
  4. Step 4: Simplify right side
    5,432.40x = 15,655,549.40
  5. Step 5: Solve for x
    x = 15,655,549.40/5,432.40
  6. Step 6: Final answer
    x = 2,881.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.