Home / 6,470.20-9,706.20-2,772.40

Finding the Fourth Proportional to 6,470.20, 9,706.20 and 2,772.40

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Solution

The fourth proportional to 6,470.20, 9,706.20 and 2,772.40 is: 4,158.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,470.20 : 9,706.20 = 2,772.40 : x
  2. Step 2: Convert to fraction form
    6,470.20/9,706.20 = 2,772.40/x
  3. Step 3: Cross multiply
    6,470.20x = 9,706.20 × 2,772.40
  4. Step 4: Simplify right side
    6,470.20x = 26,909,468.88
  5. Step 5: Solve for x
    x = 26,909,468.88/6,470.20
  6. Step 6: Final answer
    x = 4,158.99

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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.