Home / 2,129,513.87-2,938,713.78-1,162,644.16

Finding the Fourth Proportional to 2,129,513.87, 2,938,713.78 and 1,162,644.16

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Solution

The fourth proportional to 2,129,513.87, 2,938,713.78 and 1,162,644.16 is: 1,604,440.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,513.87 : 2,938,713.78 = 1,162,644.16 : x
  2. Step 2: Convert to fraction form
    2,129,513.87/2,938,713.78 = 1,162,644.16/x
  3. Step 3: Cross multiply
    2,129,513.87x = 2,938,713.78 × 1,162,644.16
  4. Step 4: Simplify right side
    2,129,513.87x = 3,416,678,406,881.74
  5. Step 5: Solve for x
    x = 3,416,678,406,881.74/2,129,513.87
  6. Step 6: Final answer
    x = 1,604,440.55

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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.