Home / 6,915.57-9,543.59-3,771.75

Finding the Fourth Proportional to 6,915.57, 9,543.59 and 3,771.75

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Solution

The fourth proportional to 6,915.57, 9,543.59 and 3,771.75 is: 5,205.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.57 : 9,543.59 = 3,771.75 : x
  2. Step 2: Convert to fraction form
    6,915.57/9,543.59 = 3,771.75/x
  3. Step 3: Cross multiply
    6,915.57x = 9,543.59 × 3,771.75
  4. Step 4: Simplify right side
    6,915.57x = 35,996,035.58
  5. Step 5: Solve for x
    x = 35,996,035.58/6,915.57
  6. Step 6: Final answer
    x = 5,205.07

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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.