Home / 7,869.47-11,798.73-2,937.78

Finding the Fourth Proportional to 7,869.47, 11,798.73 and 2,937.78

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Solution

The fourth proportional to 7,869.47, 11,798.73 and 2,937.78 is: 4,404.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.47 : 11,798.73 = 2,937.78 : x
  2. Step 2: Convert to fraction form
    7,869.47/11,798.73 = 2,937.78/x
  3. Step 3: Cross multiply
    7,869.47x = 11,798.73 × 2,937.78
  4. Step 4: Simplify right side
    7,869.47x = 34,662,073.02
  5. Step 5: Solve for x
    x = 34,662,073.02/7,869.47
  6. Step 6: Final answer
    x = 4,404.63

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1.5x scale

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.