Home / 3,543.26-4,878.54-3,215.21

Finding the Fourth Proportional to 3,543.26, 4,878.54 and 3,215.21

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Solution

The fourth proportional to 3,543.26, 4,878.54 and 3,215.21 is: 4,426.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.26 : 4,878.54 = 3,215.21 : x
  2. Step 2: Convert to fraction form
    3,543.26/4,878.54 = 3,215.21/x
  3. Step 3: Cross multiply
    3,543.26x = 4,878.54 × 3,215.21
  4. Step 4: Simplify right side
    3,543.26x = 15,685,506.20
  5. Step 5: Solve for x
    x = 15,685,506.20/3,543.26
  6. Step 6: Final answer
    x = 4,426.86

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1.5x scale

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.