Home / 5,177.76-7,767.55-2,214.58

Finding the Fourth Proportional to 5,177.76, 7,767.55 and 2,214.58

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Solution

The fourth proportional to 5,177.76, 7,767.55 and 2,214.58 is: 3,322.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.76 : 7,767.55 = 2,214.58 : x
  2. Step 2: Convert to fraction form
    5,177.76/7,767.55 = 2,214.58/x
  3. Step 3: Cross multiply
    5,177.76x = 7,767.55 × 2,214.58
  4. Step 4: Simplify right side
    5,177.76x = 17,201,822.04
  5. Step 5: Solve for x
    x = 17,201,822.04/5,177.76
  6. Step 6: Final answer
    x = 3,322.25

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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.