Home / 3,397.49-4,690.29-2,639.58

Finding the Fourth Proportional to 3,397.49, 4,690.29 and 2,639.58

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Solution

The fourth proportional to 3,397.49, 4,690.29 and 2,639.58 is: 3,643.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.49 : 4,690.29 = 2,639.58 : x
  2. Step 2: Convert to fraction form
    3,397.49/4,690.29 = 2,639.58/x
  3. Step 3: Cross multiply
    3,397.49x = 4,690.29 × 2,639.58
  4. Step 4: Simplify right side
    3,397.49x = 12,380,387.99
  5. Step 5: Solve for x
    x = 12,380,387.99/3,397.49
  6. Step 6: Final answer
    x = 3,643.98

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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.