Home / 4,728.13-7,091.28-1,805.74

Finding the Fourth Proportional to 4,728.13, 7,091.28 and 1,805.74

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Solution

The fourth proportional to 4,728.13, 7,091.28 and 1,805.74 is: 2,708.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,728.13 : 7,091.28 = 1,805.74 : x
  2. Step 2: Convert to fraction form
    4,728.13/7,091.28 = 1,805.74/x
  3. Step 3: Cross multiply
    4,728.13x = 7,091.28 × 1,805.74
  4. Step 4: Simplify right side
    4,728.13x = 12,805,007.95
  5. Step 5: Solve for x
    x = 12,805,007.95/4,728.13
  6. Step 6: Final answer
    x = 2,708.26

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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.