Home / 3,547.52-5,319.36-1,238.72

Finding the Fourth Proportional to 3,547.52, 5,319.36 and 1,238.72

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Solution

The fourth proportional to 3,547.52, 5,319.36 and 1,238.72 is: 1,857.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.52 : 5,319.36 = 1,238.72 : x
  2. Step 2: Convert to fraction form
    3,547.52/5,319.36 = 1,238.72/x
  3. Step 3: Cross multiply
    3,547.52x = 5,319.36 × 1,238.72
  4. Step 4: Simplify right side
    3,547.52x = 6,589,197.62
  5. Step 5: Solve for x
    x = 6,589,197.62/3,547.52
  6. Step 6: Final answer
    x = 1,857.41

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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.