Home / 1,395.47-2,080.88-1,382.96

Finding the Fourth Proportional to 1,395.47, 2,080.88 and 1,382.96

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Solution

The fourth proportional to 1,395.47, 2,080.88 and 1,382.96 is: 2,062.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.47 : 2,080.88 = 1,382.96 : x
  2. Step 2: Convert to fraction form
    1,395.47/2,080.88 = 1,382.96/x
  3. Step 3: Cross multiply
    1,395.47x = 2,080.88 × 1,382.96
  4. Step 4: Simplify right side
    1,395.47x = 2,877,773.80
  5. Step 5: Solve for x
    x = 2,877,773.80/1,395.47
  6. Step 6: Final answer
    x = 2,062.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.