Home / 5,272.90-7,909.38-1,377.34

Finding the Fourth Proportional to 5,272.90, 7,909.38 and 1,377.34

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Solution

The fourth proportional to 5,272.90, 7,909.38 and 1,377.34 is: 2,066.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.90 : 7,909.38 = 1,377.34 : x
  2. Step 2: Convert to fraction form
    5,272.90/7,909.38 = 1,377.34/x
  3. Step 3: Cross multiply
    5,272.90x = 7,909.38 × 1,377.34
  4. Step 4: Simplify right side
    5,272.90x = 10,893,905.45
  5. Step 5: Solve for x
    x = 10,893,905.45/5,272.90
  6. Step 6: Final answer
    x = 2,066.02

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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.