Home / 3,316.74-4,577.04-2,139.90

Finding the Fourth Proportional to 3,316.74, 4,577.04 and 2,139.90

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Solution

The fourth proportional to 3,316.74, 4,577.04 and 2,139.90 is: 2,953.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.74 : 4,577.04 = 2,139.90 : x
  2. Step 2: Convert to fraction form
    3,316.74/4,577.04 = 2,139.90/x
  3. Step 3: Cross multiply
    3,316.74x = 4,577.04 × 2,139.90
  4. Step 4: Simplify right side
    3,316.74x = 9,794,407.90
  5. Step 5: Solve for x
    x = 9,794,407.90/3,316.74
  6. Step 6: Final answer
    x = 2,953.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.