Home / 2,121,535.34-3,177,237.71-1,221,084.35

Finding the Fourth Proportional to 2,121,535.34, 3,177,237.71 and 1,221,084.35

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Solution

The fourth proportional to 2,121,535.34, 3,177,237.71 and 1,221,084.35 is: 1,828,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,535.34 : 3,177,237.71 = 1,221,084.35 : x
  2. Step 2: Convert to fraction form
    2,121,535.34/3,177,237.71 = 1,221,084.35/x
  3. Step 3: Cross multiply
    2,121,535.34x = 3,177,237.71 × 1,221,084.35
  4. Step 4: Simplify right side
    2,121,535.34x = 3,879,675,221,919.23
  5. Step 5: Solve for x
    x = 3,879,675,221,919.23/2,121,535.34
  6. Step 6: Final answer
    x = 1,828,711.10

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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.