Home / 5,312.61-7,331.39-2,922.62

Finding the Fourth Proportional to 5,312.61, 7,331.39 and 2,922.62

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Solution

The fourth proportional to 5,312.61, 7,331.39 and 2,922.62 is: 4,033.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.61 : 7,331.39 = 2,922.62 : x
  2. Step 2: Convert to fraction form
    5,312.61/7,331.39 = 2,922.62/x
  3. Step 3: Cross multiply
    5,312.61x = 7,331.39 × 2,922.62
  4. Step 4: Simplify right side
    5,312.61x = 21,426,892.68
  5. Step 5: Solve for x
    x = 21,426,892.68/5,312.61
  6. Step 6: Final answer
    x = 4,033.21

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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.