Home / 1,489.02-2,055.65-1,017.61

Finding the Fourth Proportional to 1,489.02, 2,055.65 and 1,017.61

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Solution

The fourth proportional to 1,489.02, 2,055.65 and 1,017.61 is: 1,404.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489.02 : 2,055.65 = 1,017.61 : x
  2. Step 2: Convert to fraction form
    1,489.02/2,055.65 = 1,017.61/x
  3. Step 3: Cross multiply
    1,489.02x = 2,055.65 × 1,017.61
  4. Step 4: Simplify right side
    1,489.02x = 2,091,850.00
  5. Step 5: Solve for x
    x = 2,091,850.00/1,489.02
  6. Step 6: Final answer
    x = 1,404.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.