Home / 1,545.30-2,132.70-882.36

Finding the Fourth Proportional to 1,545.30, 2,132.70 and 882.36

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Solution

The fourth proportional to 1,545.30, 2,132.70 and 882.36 is: 1,217.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.30 : 2,132.70 = 882.36 : x
  2. Step 2: Convert to fraction form
    1,545.30/2,132.70 = 882.36/x
  3. Step 3: Cross multiply
    1,545.30x = 2,132.70 × 882.36
  4. Step 4: Simplify right side
    1,545.30x = 1,881,809.17
  5. Step 5: Solve for x
    x = 1,881,809.17/1,545.30
  6. Step 6: Final answer
    x = 1,217.76

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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.