Home / 2,715.12-4,066.24-1,724.39

Finding the Fourth Proportional to 2,715.12, 4,066.24 and 1,724.39

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Solution

The fourth proportional to 2,715.12, 4,066.24 and 1,724.39 is: 2,582.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.12 : 4,066.24 = 1,724.39 : x
  2. Step 2: Convert to fraction form
    2,715.12/4,066.24 = 1,724.39/x
  3. Step 3: Cross multiply
    2,715.12x = 4,066.24 × 1,724.39
  4. Step 4: Simplify right side
    2,715.12x = 7,011,763.26
  5. Step 5: Solve for x
    x = 7,011,763.26/2,715.12
  6. Step 6: Final answer
    x = 2,582.49

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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.