Home / 5,123.43-7,681.50-3,038.49

Finding the Fourth Proportional to 5,123.43, 7,681.50 and 3,038.49

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Solution

The fourth proportional to 5,123.43, 7,681.50 and 3,038.49 is: 4,555.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,123.43 : 7,681.50 = 3,038.49 : x
  2. Step 2: Convert to fraction form
    5,123.43/7,681.50 = 3,038.49/x
  3. Step 3: Cross multiply
    5,123.43x = 7,681.50 × 3,038.49
  4. Step 4: Simplify right side
    5,123.43x = 23,340,160.94
  5. Step 5: Solve for x
    x = 23,340,160.94/5,123.43
  6. Step 6: Final answer
    x = 4,555.57

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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.