Home / 1,655.14-2,478.60-1,382.44

Finding the Fourth Proportional to 1,655.14, 2,478.60 and 1,382.44

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Solution

The fourth proportional to 1,655.14, 2,478.60 and 1,382.44 is: 2,070.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.14 : 2,478.60 = 1,382.44 : x
  2. Step 2: Convert to fraction form
    1,655.14/2,478.60 = 1,382.44/x
  3. Step 3: Cross multiply
    1,655.14x = 2,478.60 × 1,382.44
  4. Step 4: Simplify right side
    1,655.14x = 3,426,515.78
  5. Step 5: Solve for x
    x = 3,426,515.78/1,655.14
  6. Step 6: Final answer
    x = 2,070.23

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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.