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Finding the Fourth Proportional to 2,978.59, 4,110.39 and 1,652.28

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Solution

The fourth proportional to 2,978.59, 4,110.39 and 1,652.28 is: 2,280.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,978.59 : 4,110.39 = 1,652.28 : x
  2. Step 2: Convert to fraction form
    2,978.59/4,110.39 = 1,652.28/x
  3. Step 3: Cross multiply
    2,978.59x = 4,110.39 × 1,652.28
  4. Step 4: Simplify right side
    2,978.59x = 6,791,506.93
  5. Step 5: Solve for x
    x = 6,791,506.93/2,978.59
  6. Step 6: Final answer
    x = 2,280.11

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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.