Home / 2,545.19-3,817.93-985.43

Finding the Fourth Proportional to 2,545.19, 3,817.93 and 985.43

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Solution

The fourth proportional to 2,545.19, 3,817.93 and 985.43 is: 1,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,545.19 : 3,817.93 = 985.43 : x
  2. Step 2: Convert to fraction form
    2,545.19/3,817.93 = 985.43/x
  3. Step 3: Cross multiply
    2,545.19x = 3,817.93 × 985.43
  4. Step 4: Simplify right side
    2,545.19x = 3,762,302.76
  5. Step 5: Solve for x
    x = 3,762,302.76/2,545.19
  6. Step 6: Final answer
    x = 1,478.20

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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.