Home / 3,442.18-5,156.13-1,681.87

Finding the Fourth Proportional to 3,442.18, 5,156.13 and 1,681.87

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Solution

The fourth proportional to 3,442.18, 5,156.13 and 1,681.87 is: 2,519.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,442.18 : 5,156.13 = 1,681.87 : x
  2. Step 2: Convert to fraction form
    3,442.18/5,156.13 = 1,681.87/x
  3. Step 3: Cross multiply
    3,442.18x = 5,156.13 × 1,681.87
  4. Step 4: Simplify right side
    3,442.18x = 8,671,940.36
  5. Step 5: Solve for x
    x = 8,671,940.36/3,442.18
  6. Step 6: Final answer
    x = 2,519.32

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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.