Home / 2,052.18-2,829.77-1,387.86

Finding the Fourth Proportional to 2,052.18, 2,829.77 and 1,387.86

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Solution

The fourth proportional to 2,052.18, 2,829.77 and 1,387.86 is: 1,913.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,052.18 : 2,829.77 = 1,387.86 : x
  2. Step 2: Convert to fraction form
    2,052.18/2,829.77 = 1,387.86/x
  3. Step 3: Cross multiply
    2,052.18x = 2,829.77 × 1,387.86
  4. Step 4: Simplify right side
    2,052.18x = 3,927,324.59
  5. Step 5: Solve for x
    x = 3,927,324.59/2,052.18
  6. Step 6: Final answer
    x = 1,913.73

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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.