Home / 5,177.16-7,767.05-1,479.47

Finding the Fourth Proportional to 5,177.16, 7,767.05 and 1,479.47

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Solution

The fourth proportional to 5,177.16, 7,767.05 and 1,479.47 is: 2,219.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.16 : 7,767.05 = 1,479.47 : x
  2. Step 2: Convert to fraction form
    5,177.16/7,767.05 = 1,479.47/x
  3. Step 3: Cross multiply
    5,177.16x = 7,767.05 × 1,479.47
  4. Step 4: Simplify right side
    5,177.16x = 11,491,071.23
  5. Step 5: Solve for x
    x = 11,491,071.23/5,177.16
  6. Step 6: Final answer
    x = 2,219.57

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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.