Home / 3,547.17-5,319.30-1,081.11

Finding the Fourth Proportional to 3,547.17, 5,319.30 and 1,081.11

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Solution

The fourth proportional to 3,547.17, 5,319.30 and 1,081.11 is: 1,621.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.17 : 5,319.30 = 1,081.11 : x
  2. Step 2: Convert to fraction form
    3,547.17/5,319.30 = 1,081.11/x
  3. Step 3: Cross multiply
    3,547.17x = 5,319.30 × 1,081.11
  4. Step 4: Simplify right side
    3,547.17x = 5,750,748.42
  5. Step 5: Solve for x
    x = 5,750,748.42/3,547.17
  6. Step 6: Final answer
    x = 1,621.22

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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.