Home / 5,547.20-8,321.76-2,085.44

Finding the Fourth Proportional to 5,547.20, 8,321.76 and 2,085.44

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Solution

The fourth proportional to 5,547.20, 8,321.76 and 2,085.44 is: 3,128.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,547.20 : 8,321.76 = 2,085.44 : x
  2. Step 2: Convert to fraction form
    5,547.20/8,321.76 = 2,085.44/x
  3. Step 3: Cross multiply
    5,547.20x = 8,321.76 × 2,085.44
  4. Step 4: Simplify right side
    5,547.20x = 17,354,531.17
  5. Step 5: Solve for x
    x = 17,354,531.17/5,547.20
  6. Step 6: Final answer
    x = 3,128.52

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1.5x scale

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.