Home / 5,431.64-7,491.30-3,543.08

Finding the Fourth Proportional to 5,431.64, 7,491.30 and 3,543.08

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Solution

The fourth proportional to 5,431.64, 7,491.30 and 3,543.08 is: 4,886.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.64 : 7,491.30 = 3,543.08 : x
  2. Step 2: Convert to fraction form
    5,431.64/7,491.30 = 3,543.08/x
  3. Step 3: Cross multiply
    5,431.64x = 7,491.30 × 3,543.08
  4. Step 4: Simplify right side
    5,431.64x = 26,542,275.20
  5. Step 5: Solve for x
    x = 26,542,275.20/5,431.64
  6. Step 6: Final answer
    x = 4,886.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.