Home / 2,914.90-4,366.52-1,988.16

Finding the Fourth Proportional to 2,914.90, 4,366.52 and 1,988.16

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Solution

The fourth proportional to 2,914.90, 4,366.52 and 1,988.16 is: 2,978.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914.90 : 4,366.52 = 1,988.16 : x
  2. Step 2: Convert to fraction form
    2,914.90/4,366.52 = 1,988.16/x
  3. Step 3: Cross multiply
    2,914.90x = 4,366.52 × 1,988.16
  4. Step 4: Simplify right side
    2,914.90x = 8,681,321.54
  5. Step 5: Solve for x
    x = 8,681,321.54/2,914.90
  6. Step 6: Final answer
    x = 2,978.26

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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.