Home / 4,479.29-6,716.80-1,557.21

Finding the Fourth Proportional to 4,479.29, 6,716.80 and 1,557.21

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Solution

The fourth proportional to 4,479.29, 6,716.80 and 1,557.21 is: 2,335.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479.29 : 6,716.80 = 1,557.21 : x
  2. Step 2: Convert to fraction form
    4,479.29/6,716.80 = 1,557.21/x
  3. Step 3: Cross multiply
    4,479.29x = 6,716.80 × 1,557.21
  4. Step 4: Simplify right side
    4,479.29x = 10,459,468.13
  5. Step 5: Solve for x
    x = 10,459,468.13/4,479.29
  6. Step 6: Final answer
    x = 2,335.07

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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.