Home / 1,627.95-2,442.80-1,080.39

Finding the Fourth Proportional to 1,627.95, 2,442.80 and 1,080.39

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Solution

The fourth proportional to 1,627.95, 2,442.80 and 1,080.39 is: 1,621.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.95 : 2,442.80 = 1,080.39 : x
  2. Step 2: Convert to fraction form
    1,627.95/2,442.80 = 1,080.39/x
  3. Step 3: Cross multiply
    1,627.95x = 2,442.80 × 1,080.39
  4. Step 4: Simplify right side
    1,627.95x = 2,639,176.69
  5. Step 5: Solve for x
    x = 2,639,176.69/1,627.95
  6. Step 6: Final answer
    x = 1,621.17

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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.