Home / 2,173.78-3,000.30-1,545.22

Finding the Fourth Proportional to 2,173.78, 3,000.30 and 1,545.22

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Solution

The fourth proportional to 2,173.78, 3,000.30 and 1,545.22 is: 2,132.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.78 : 3,000.30 = 1,545.22 : x
  2. Step 2: Convert to fraction form
    2,173.78/3,000.30 = 1,545.22/x
  3. Step 3: Cross multiply
    2,173.78x = 3,000.30 × 1,545.22
  4. Step 4: Simplify right side
    2,173.78x = 4,636,123.57
  5. Step 5: Solve for x
    x = 4,636,123.57/2,173.78
  6. Step 6: Final answer
    x = 2,132.75

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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.