Home / 5,146.47-7,719.71-1,449.09

Finding the Fourth Proportional to 5,146.47, 7,719.71 and 1,449.09

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Solution

The fourth proportional to 5,146.47, 7,719.71 and 1,449.09 is: 2,173.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.47 : 7,719.71 = 1,449.09 : x
  2. Step 2: Convert to fraction form
    5,146.47/7,719.71 = 1,449.09/x
  3. Step 3: Cross multiply
    5,146.47x = 7,719.71 × 1,449.09
  4. Step 4: Simplify right side
    5,146.47x = 11,186,547.32
  5. Step 5: Solve for x
    x = 11,186,547.32/5,146.47
  6. Step 6: Final answer
    x = 2,173.64

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Similar ratio
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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.