Home / 3,020.28-4,528.56-1,979.01

Finding the Fourth Proportional to 3,020.28, 4,528.56 and 1,979.01

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Solution

The fourth proportional to 3,020.28, 4,528.56 and 1,979.01 is: 2,967.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.28 : 4,528.56 = 1,979.01 : x
  2. Step 2: Convert to fraction form
    3,020.28/4,528.56 = 1,979.01/x
  3. Step 3: Cross multiply
    3,020.28x = 4,528.56 × 1,979.01
  4. Step 4: Simplify right side
    3,020.28x = 8,962,065.53
  5. Step 5: Solve for x
    x = 8,962,065.53/3,020.28
  6. Step 6: Final answer
    x = 2,967.30

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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.