Home / 7,108.32-9,809.40-3,964.50

Finding the Fourth Proportional to 7,108.32, 9,809.40 and 3,964.50

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Solution

The fourth proportional to 7,108.32, 9,809.40 and 3,964.50 is: 5,470.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.32 : 9,809.40 = 3,964.50 : x
  2. Step 2: Convert to fraction form
    7,108.32/9,809.40 = 3,964.50/x
  3. Step 3: Cross multiply
    7,108.32x = 9,809.40 × 3,964.50
  4. Step 4: Simplify right side
    7,108.32x = 38,889,366.30
  5. Step 5: Solve for x
    x = 38,889,366.30/7,108.32
  6. Step 6: Final answer
    x = 5,470.96

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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.