Home / 7,728.50-11,592.69-2,798.13

Finding the Fourth Proportional to 7,728.50, 11,592.69 and 2,798.13

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Solution

The fourth proportional to 7,728.50, 11,592.69 and 2,798.13 is: 4,197.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,728.50 : 11,592.69 = 2,798.13 : x
  2. Step 2: Convert to fraction form
    7,728.50/11,592.69 = 2,798.13/x
  3. Step 3: Cross multiply
    7,728.50x = 11,592.69 × 2,798.13
  4. Step 4: Simplify right side
    7,728.50x = 32,437,853.67
  5. Step 5: Solve for x
    x = 32,437,853.67/7,728.50
  6. Step 6: Final answer
    x = 4,197.18

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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.