Home / 3,927.17-5,417.32-2,488.90

Finding the Fourth Proportional to 3,927.17, 5,417.32 and 2,488.90

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Solution

The fourth proportional to 3,927.17, 5,417.32 and 2,488.90 is: 3,433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.17 : 5,417.32 = 2,488.90 : x
  2. Step 2: Convert to fraction form
    3,927.17/5,417.32 = 2,488.90/x
  3. Step 3: Cross multiply
    3,927.17x = 5,417.32 × 2,488.90
  4. Step 4: Simplify right side
    3,927.17x = 13,483,167.75
  5. Step 5: Solve for x
    x = 13,483,167.75/3,927.17
  6. Step 6: Final answer
    x = 3,433.30

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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.