Home / 5,310.11-7,328.13-2,920.18

Finding the Fourth Proportional to 5,310.11, 7,328.13 and 2,920.18

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Solution

The fourth proportional to 5,310.11, 7,328.13 and 2,920.18 is: 4,029.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,310.11 : 7,328.13 = 2,920.18 : x
  2. Step 2: Convert to fraction form
    5,310.11/7,328.13 = 2,920.18/x
  3. Step 3: Cross multiply
    5,310.11x = 7,328.13 × 2,920.18
  4. Step 4: Simplify right side
    5,310.11x = 21,399,428.43
  5. Step 5: Solve for x
    x = 21,399,428.43/5,310.11
  6. Step 6: Final answer
    x = 4,029.94

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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.