Home / 5,320.38-7,979.31-2,357.20

Finding the Fourth Proportional to 5,320.38, 7,979.31 and 2,357.20

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Solution

The fourth proportional to 5,320.38, 7,979.31 and 2,357.20 is: 3,535.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.38 : 7,979.31 = 2,357.20 : x
  2. Step 2: Convert to fraction form
    5,320.38/7,979.31 = 2,357.20/x
  3. Step 3: Cross multiply
    5,320.38x = 7,979.31 × 2,357.20
  4. Step 4: Simplify right side
    5,320.38x = 18,808,839.51
  5. Step 5: Solve for x
    x = 18,808,839.51/5,320.38
  6. Step 6: Final answer
    x = 3,535.24

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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.