Home / 4,398.72-6,597.36-1,320

Finding the Fourth Proportional to 4,398.72, 6,597.36 and 1,320

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Solution

The fourth proportional to 4,398.72, 6,597.36 and 1,320 is: 1,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,398.72 : 6,597.36 = 1,320 : x
  2. Step 2: Convert to fraction form
    4,398.72/6,597.36 = 1,320/x
  3. Step 3: Cross multiply
    4,398.72x = 6,597.36 × 1,320
  4. Step 4: Simplify right side
    4,398.72x = 8,708,515.20
  5. Step 5: Solve for x
    x = 8,708,515.20/4,398.72
  6. Step 6: Final answer
    x = 1,979.78

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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.