Home / 3,151,281.52-4,349,078.76-1,928,138.32

Finding the Fourth Proportional to 3,151,281.52, 4,349,078.76 and 1,928,138.32

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Solution

The fourth proportional to 3,151,281.52, 4,349,078.76 and 1,928,138.32 is: 2,661,020.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151,281.52 : 4,349,078.76 = 1,928,138.32 : x
  2. Step 2: Convert to fraction form
    3,151,281.52/4,349,078.76 = 1,928,138.32/x
  3. Step 3: Cross multiply
    3,151,281.52x = 4,349,078.76 × 1,928,138.32
  4. Step 4: Simplify right side
    3,151,281.52x = 8,385,625,413,854.08
  5. Step 5: Solve for x
    x = 8,385,625,413,854.08/3,151,281.52
  6. Step 6: Final answer
    x = 2,661,020.72

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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.