Home / 2,423.90-3,638.55-1,330.40

Finding the Fourth Proportional to 2,423.90, 3,638.55 and 1,330.40

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Solution

The fourth proportional to 2,423.90, 3,638.55 and 1,330.40 is: 1,997.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.90 : 3,638.55 = 1,330.40 : x
  2. Step 2: Convert to fraction form
    2,423.90/3,638.55 = 1,330.40/x
  3. Step 3: Cross multiply
    2,423.90x = 3,638.55 × 1,330.40
  4. Step 4: Simplify right side
    2,423.90x = 4,840,726.92
  5. Step 5: Solve for x
    x = 4,840,726.92/2,423.90
  6. Step 6: Final answer
    x = 1,997.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.