Home / 5,275.17-7,279.11-2,916.90

Finding the Fourth Proportional to 5,275.17, 7,279.11 and 2,916.90

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Solution

The fourth proportional to 5,275.17, 7,279.11 and 2,916.90 is: 4,024.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.17 : 7,279.11 = 2,916.90 : x
  2. Step 2: Convert to fraction form
    5,275.17/7,279.11 = 2,916.90/x
  3. Step 3: Cross multiply
    5,275.17x = 7,279.11 × 2,916.90
  4. Step 4: Simplify right side
    5,275.17x = 21,232,435.96
  5. Step 5: Solve for x
    x = 21,232,435.96/5,275.17
  6. Step 6: Final answer
    x = 4,024.98

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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.