Home / 5,440.90-8,145.15-4,857.70

Finding the Fourth Proportional to 5,440.90, 8,145.15 and 4,857.70

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Solution

The fourth proportional to 5,440.90, 8,145.15 and 4,857.70 is: 7,272.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.90 : 8,145.15 = 4,857.70 : x
  2. Step 2: Convert to fraction form
    5,440.90/8,145.15 = 4,857.70/x
  3. Step 3: Cross multiply
    5,440.90x = 8,145.15 × 4,857.70
  4. Step 4: Simplify right side
    5,440.90x = 39,566,695.16
  5. Step 5: Solve for x
    x = 39,566,695.16/5,440.90
  6. Step 6: Final answer
    x = 7,272.09

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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.