Home / 2,101,890.65-2,900,617.97-1,184,130.78

Finding the Fourth Proportional to 2,101,890.65, 2,900,617.97 and 1,184,130.78

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Solution

The fourth proportional to 2,101,890.65, 2,900,617.97 and 1,184,130.78 is: 1,634,105.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101,890.65 : 2,900,617.97 = 1,184,130.78 : x
  2. Step 2: Convert to fraction form
    2,101,890.65/2,900,617.97 = 1,184,130.78/x
  3. Step 3: Cross multiply
    2,101,890.65x = 2,900,617.97 × 1,184,130.78
  4. Step 4: Simplify right side
    2,101,890.65x = 3,434,711,002,500.15
  5. Step 5: Solve for x
    x = 3,434,711,002,500.15/2,101,890.65
  6. Step 6: Final answer
    x = 1,634,105.47

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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.