Home / 2,383.32-3,574.98-1,288.20

Finding the Fourth Proportional to 2,383.32, 3,574.98 and 1,288.20

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Solution

The fourth proportional to 2,383.32, 3,574.98 and 1,288.20 is: 1,932.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,383.32 : 3,574.98 = 1,288.20 : x
  2. Step 2: Convert to fraction form
    2,383.32/3,574.98 = 1,288.20/x
  3. Step 3: Cross multiply
    2,383.32x = 3,574.98 × 1,288.20
  4. Step 4: Simplify right side
    2,383.32x = 4,605,289.24
  5. Step 5: Solve for x
    x = 4,605,289.24/2,383.32
  6. Step 6: Final answer
    x = 1,932.30

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Similar ratio
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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.