Home / 6,943.12-9,581.56-4,289.92

Finding the Fourth Proportional to 6,943.12, 9,581.56 and 4,289.92

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Solution

The fourth proportional to 6,943.12, 9,581.56 and 4,289.92 is: 5,920.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,943.12 : 9,581.56 = 4,289.92 : x
  2. Step 2: Convert to fraction form
    6,943.12/9,581.56 = 4,289.92/x
  3. Step 3: Cross multiply
    6,943.12x = 9,581.56 × 4,289.92
  4. Step 4: Simplify right side
    6,943.12x = 41,104,125.88
  5. Step 5: Solve for x
    x = 41,104,125.88/6,943.12
  6. Step 6: Final answer
    x = 5,920.12

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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.