Home / 2,123,643.30-3,185,464.95-1,981,925.70

Finding the Fourth Proportional to 2,123,643.30, 3,185,464.95 and 1,981,925.70

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Solution

The fourth proportional to 2,123,643.30, 3,185,464.95 and 1,981,925.70 is: 2,972,888.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,123,643.30 : 3,185,464.95 = 1,981,925.70 : x
  2. Step 2: Convert to fraction form
    2,123,643.30/3,185,464.95 = 1,981,925.70/x
  3. Step 3: Cross multiply
    2,123,643.30x = 3,185,464.95 × 1,981,925.70
  4. Step 4: Simplify right side
    2,123,643.30x = 6,313,354,850,854.22
  5. Step 5: Solve for x
    x = 6,313,354,850,854.22/2,123,643.30
  6. Step 6: Final answer
    x = 2,972,888.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.