Home / 3,648.57-5,031.58-2,390.70

Finding the Fourth Proportional to 3,648.57, 5,031.58 and 2,390.70

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Solution

The fourth proportional to 3,648.57, 5,031.58 and 2,390.70 is: 3,296.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,648.57 : 5,031.58 = 2,390.70 : x
  2. Step 2: Convert to fraction form
    3,648.57/5,031.58 = 2,390.70/x
  3. Step 3: Cross multiply
    3,648.57x = 5,031.58 × 2,390.70
  4. Step 4: Simplify right side
    3,648.57x = 12,029,011.97
  5. Step 5: Solve for x
    x = 12,029,011.97/3,648.57
  6. Step 6: Final answer
    x = 3,296.91

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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.