Home / 1,508.32-2,074.54-1,212.92

Finding the Fourth Proportional to 1,508.32, 2,074.54 and 1,212.92

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Solution

The fourth proportional to 1,508.32, 2,074.54 and 1,212.92 is: 1,668.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508.32 : 2,074.54 = 1,212.92 : x
  2. Step 2: Convert to fraction form
    1,508.32/2,074.54 = 1,212.92/x
  3. Step 3: Cross multiply
    1,508.32x = 2,074.54 × 1,212.92
  4. Step 4: Simplify right side
    1,508.32x = 2,516,251.06
  5. Step 5: Solve for x
    x = 2,516,251.06/1,508.32
  6. Step 6: Final answer
    x = 1,668.25

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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.