Home / 7,484.49-11,220.65-2,801.88

Finding the Fourth Proportional to 7,484.49, 11,220.65 and 2,801.88

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Solution

The fourth proportional to 7,484.49, 11,220.65 and 2,801.88 is: 4,200.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,484.49 : 11,220.65 = 2,801.88 : x
  2. Step 2: Convert to fraction form
    7,484.49/11,220.65 = 2,801.88/x
  3. Step 3: Cross multiply
    7,484.49x = 11,220.65 × 2,801.88
  4. Step 4: Simplify right side
    7,484.49x = 31,438,844.71
  5. Step 5: Solve for x
    x = 31,438,844.71/7,484.49
  6. Step 6: Final answer
    x = 4,200.53

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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.