Home / 4,479.12-6,717.60-1,557.36

Finding the Fourth Proportional to 4,479.12, 6,717.60 and 1,557.36

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Solution

The fourth proportional to 4,479.12, 6,717.60 and 1,557.36 is: 2,335.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479.12 : 6,717.60 = 1,557.36 : x
  2. Step 2: Convert to fraction form
    4,479.12/6,717.60 = 1,557.36/x
  3. Step 3: Cross multiply
    4,479.12x = 6,717.60 × 1,557.36
  4. Step 4: Simplify right side
    4,479.12x = 10,461,721.54
  5. Step 5: Solve for x
    x = 10,461,721.54/4,479.12
  6. Step 6: Final answer
    x = 2,335.66

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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.