Home / 5,321.66-7,343.90-2,931.57

Finding the Fourth Proportional to 5,321.66, 7,343.90 and 2,931.57

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Solution

The fourth proportional to 5,321.66, 7,343.90 and 2,931.57 is: 4,045.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.66 : 7,343.90 = 2,931.57 : x
  2. Step 2: Convert to fraction form
    5,321.66/7,343.90 = 2,931.57/x
  3. Step 3: Cross multiply
    5,321.66x = 7,343.90 × 2,931.57
  4. Step 4: Simplify right side
    5,321.66x = 21,529,142.27
  5. Step 5: Solve for x
    x = 21,529,142.27/5,321.66
  6. Step 6: Final answer
    x = 4,045.57

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1.5x scale

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.