Home / 7,881.04-11,822.78-2,686.52

Finding the Fourth Proportional to 7,881.04, 11,822.78 and 2,686.52

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Solution

The fourth proportional to 7,881.04, 11,822.78 and 2,686.52 is: 4,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.04 : 11,822.78 = 2,686.52 : x
  2. Step 2: Convert to fraction form
    7,881.04/11,822.78 = 2,686.52/x
  3. Step 3: Cross multiply
    7,881.04x = 11,822.78 × 2,686.52
  4. Step 4: Simplify right side
    7,881.04x = 31,762,134.93
  5. Step 5: Solve for x
    x = 31,762,134.93/7,881.04
  6. Step 6: Final answer
    x = 4,030.20

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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.