Home / 3,574.79-5,358.04-2,115.17

Finding the Fourth Proportional to 3,574.79, 5,358.04 and 2,115.17

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Solution

The fourth proportional to 3,574.79, 5,358.04 and 2,115.17 is: 3,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,574.79 : 5,358.04 = 2,115.17 : x
  2. Step 2: Convert to fraction form
    3,574.79/5,358.04 = 2,115.17/x
  3. Step 3: Cross multiply
    3,574.79x = 5,358.04 × 2,115.17
  4. Step 4: Simplify right side
    3,574.79x = 11,333,165.47
  5. Step 5: Solve for x
    x = 11,333,165.47/3,574.79
  6. Step 6: Final answer
    x = 3,170.30

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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.