Home / 6,543.89-9,028.57-3,711.12

Finding the Fourth Proportional to 6,543.89, 9,028.57 and 3,711.12

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Solution

The fourth proportional to 6,543.89, 9,028.57 and 3,711.12 is: 5,120.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,543.89 : 9,028.57 = 3,711.12 : x
  2. Step 2: Convert to fraction form
    6,543.89/9,028.57 = 3,711.12/x
  3. Step 3: Cross multiply
    6,543.89x = 9,028.57 × 3,711.12
  4. Step 4: Simplify right side
    6,543.89x = 33,506,106.70
  5. Step 5: Solve for x
    x = 33,506,106.70/6,543.89
  6. Step 6: Final answer
    x = 5,120.21

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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.