Home / 5,397.88-7,445.10-4,071.64

Finding the Fourth Proportional to 5,397.88, 7,445.10 and 4,071.64

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Solution

The fourth proportional to 5,397.88, 7,445.10 and 4,071.64 is: 5,615.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,397.88 : 7,445.10 = 4,071.64 : x
  2. Step 2: Convert to fraction form
    5,397.88/7,445.10 = 4,071.64/x
  3. Step 3: Cross multiply
    5,397.88x = 7,445.10 × 4,071.64
  4. Step 4: Simplify right side
    5,397.88x = 30,313,766.96
  5. Step 5: Solve for x
    x = 30,313,766.96/5,397.88
  6. Step 6: Final answer
    x = 5,615.87

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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.