Home / 5,321.09-7,343.19-2,931.05

Finding the Fourth Proportional to 5,321.09, 7,343.19 and 2,931.05

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Solution

The fourth proportional to 5,321.09, 7,343.19 and 2,931.05 is: 4,044.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.09 : 7,343.19 = 2,931.05 : x
  2. Step 2: Convert to fraction form
    5,321.09/7,343.19 = 2,931.05/x
  3. Step 3: Cross multiply
    5,321.09x = 7,343.19 × 2,931.05
  4. Step 4: Simplify right side
    5,321.09x = 21,523,275.41
  5. Step 5: Solve for x
    x = 21,523,275.41/5,321.09
  6. Step 6: Final answer
    x = 4,044.90

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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.