Home / 7,247.82-10,874.85-3,915.40

Finding the Fourth Proportional to 7,247.82, 10,874.85 and 3,915.40

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Solution

The fourth proportional to 7,247.82, 10,874.85 and 3,915.40 is: 5,874.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,247.82 : 10,874.85 = 3,915.40 : x
  2. Step 2: Convert to fraction form
    7,247.82/10,874.85 = 3,915.40/x
  3. Step 3: Cross multiply
    7,247.82x = 10,874.85 × 3,915.40
  4. Step 4: Simplify right side
    7,247.82x = 42,579,386.60
  5. Step 5: Solve for x
    x = 42,579,386.60/7,247.82
  6. Step 6: Final answer
    x = 5,874.79

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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.