Home / 1,423.56-2,138.08-1,180.14

Finding the Fourth Proportional to 1,423.56, 2,138.08 and 1,180.14

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Solution

The fourth proportional to 1,423.56, 2,138.08 and 1,180.14 is: 1,772.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.56 : 2,138.08 = 1,180.14 : x
  2. Step 2: Convert to fraction form
    1,423.56/2,138.08 = 1,180.14/x
  3. Step 3: Cross multiply
    1,423.56x = 2,138.08 × 1,180.14
  4. Step 4: Simplify right side
    1,423.56x = 2,523,240.53
  5. Step 5: Solve for x
    x = 2,523,240.53/1,423.56
  6. Step 6: Final answer
    x = 1,772.48

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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.