Home / 4,479.24-6,720.08-1,557.78

Finding the Fourth Proportional to 4,479.24, 6,720.08 and 1,557.78

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Solution

The fourth proportional to 4,479.24, 6,720.08 and 1,557.78 is: 2,337.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479.24 : 6,720.08 = 1,557.78 : x
  2. Step 2: Convert to fraction form
    4,479.24/6,720.08 = 1,557.78/x
  3. Step 3: Cross multiply
    4,479.24x = 6,720.08 × 1,557.78
  4. Step 4: Simplify right side
    4,479.24x = 10,468,364.83
  5. Step 5: Solve for x
    x = 10,468,364.83/4,479.24
  6. Step 6: Final answer
    x = 2,337.09

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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.