Home / 5,088.79-7,022.46-2,850.76

Finding the Fourth Proportional to 5,088.79, 7,022.46 and 2,850.76

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Solution

The fourth proportional to 5,088.79, 7,022.46 and 2,850.76 is: 3,934.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,088.79 : 7,022.46 = 2,850.76 : x
  2. Step 2: Convert to fraction form
    5,088.79/7,022.46 = 2,850.76/x
  3. Step 3: Cross multiply
    5,088.79x = 7,022.46 × 2,850.76
  4. Step 4: Simplify right side
    5,088.79x = 20,019,348.07
  5. Step 5: Solve for x
    x = 20,019,348.07/5,088.79
  6. Step 6: Final answer
    x = 3,934.01

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Half scale
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Double scale
Find fourth proportional to 5,089.79, 7,023.84 and 2,851.76
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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.