Home / 7,077.60-9,767.12-4,426.56

Finding the Fourth Proportional to 7,077.60, 9,767.12 and 4,426.56

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Solution

The fourth proportional to 7,077.60, 9,767.12 and 4,426.56 is: 6,108.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077.60 : 9,767.12 = 4,426.56 : x
  2. Step 2: Convert to fraction form
    7,077.60/9,767.12 = 4,426.56/x
  3. Step 3: Cross multiply
    7,077.60x = 9,767.12 × 4,426.56
  4. Step 4: Simplify right side
    7,077.60x = 43,234,720.57
  5. Step 5: Solve for x
    x = 43,234,720.57/7,077.60
  6. Step 6: Final answer
    x = 6,108.67

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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.