Home / 6,470.24-9,705.84-2,089.76

Finding the Fourth Proportional to 6,470.24, 9,705.84 and 2,089.76

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Solution

The fourth proportional to 6,470.24, 9,705.84 and 2,089.76 is: 3,134.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,470.24 : 9,705.84 = 2,089.76 : x
  2. Step 2: Convert to fraction form
    6,470.24/9,705.84 = 2,089.76/x
  3. Step 3: Cross multiply
    6,470.24x = 9,705.84 × 2,089.76
  4. Step 4: Simplify right side
    6,470.24x = 20,282,876.20
  5. Step 5: Solve for x
    x = 20,282,876.20/6,470.24
  6. Step 6: Final answer
    x = 3,134.80

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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.