Home / 1,497.15-2,053.89-1,387.80

Finding the Fourth Proportional to 1,497.15, 2,053.89 and 1,387.80

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Solution

The fourth proportional to 1,497.15, 2,053.89 and 1,387.80 is: 1,903.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,497.15 : 2,053.89 = 1,387.80 : x
  2. Step 2: Convert to fraction form
    1,497.15/2,053.89 = 1,387.80/x
  3. Step 3: Cross multiply
    1,497.15x = 2,053.89 × 1,387.80
  4. Step 4: Simplify right side
    1,497.15x = 2,850,388.54
  5. Step 5: Solve for x
    x = 2,850,388.54/1,497.15
  6. Step 6: Final answer
    x = 1,903.88

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.