Home / 2,590,921.74-3,881,177.76-1,290,155.28

Finding the Fourth Proportional to 2,590,921.74, 3,881,177.76 and 1,290,155.28

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Solution

The fourth proportional to 2,590,921.74, 3,881,177.76 and 1,290,155.28 is: 1,932,641.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590,921.74 : 3,881,177.76 = 1,290,155.28 : x
  2. Step 2: Convert to fraction form
    2,590,921.74/3,881,177.76 = 1,290,155.28/x
  3. Step 3: Cross multiply
    2,590,921.74x = 3,881,177.76 × 1,290,155.28
  4. Step 4: Simplify right side
    2,590,921.74x = 5,007,321,979,682.57
  5. Step 5: Solve for x
    x = 5,007,321,979,682.57/2,590,921.74
  6. Step 6: Final answer
    x = 1,932,641.15

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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.