Home / 5,097.20-7,644.48-1,398.56

Finding the Fourth Proportional to 5,097.20, 7,644.48 and 1,398.56

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Solution

The fourth proportional to 5,097.20, 7,644.48 and 1,398.56 is: 2,097.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,097.20 : 7,644.48 = 1,398.56 : x
  2. Step 2: Convert to fraction form
    5,097.20/7,644.48 = 1,398.56/x
  3. Step 3: Cross multiply
    5,097.20x = 7,644.48 × 1,398.56
  4. Step 4: Simplify right side
    5,097.20x = 10,691,263.95
  5. Step 5: Solve for x
    x = 10,691,263.95/5,097.20
  6. Step 6: Final answer
    x = 2,097.48

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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.