Home / 5,622.07-7,758.45-3,138.07

Finding the Fourth Proportional to 5,622.07, 7,758.45 and 3,138.07

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Solution

The fourth proportional to 5,622.07, 7,758.45 and 3,138.07 is: 4,330.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,622.07 : 7,758.45 = 3,138.07 : x
  2. Step 2: Convert to fraction form
    5,622.07/7,758.45 = 3,138.07/x
  3. Step 3: Cross multiply
    5,622.07x = 7,758.45 × 3,138.07
  4. Step 4: Simplify right side
    5,622.07x = 24,346,520.40
  5. Step 5: Solve for x
    x = 24,346,520.40/5,622.07
  6. Step 6: Final answer
    x = 4,330.53

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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.