Home / 3,218.13-4,437.99-2,557.17

Finding the Fourth Proportional to 3,218.13, 4,437.99 and 2,557.17

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Solution

The fourth proportional to 3,218.13, 4,437.99 and 2,557.17 is: 3,526.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.13 : 4,437.99 = 2,557.17 : x
  2. Step 2: Convert to fraction form
    3,218.13/4,437.99 = 2,557.17/x
  3. Step 3: Cross multiply
    3,218.13x = 4,437.99 × 2,557.17
  4. Step 4: Simplify right side
    3,218.13x = 11,348,694.89
  5. Step 5: Solve for x
    x = 11,348,694.89/3,218.13
  6. Step 6: Final answer
    x = 3,526.49

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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.