Home / 1,660.32-2,288.68-1,240.04

Finding the Fourth Proportional to 1,660.32, 2,288.68 and 1,240.04

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Solution

The fourth proportional to 1,660.32, 2,288.68 and 1,240.04 is: 1,709.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.32 : 2,288.68 = 1,240.04 : x
  2. Step 2: Convert to fraction form
    1,660.32/2,288.68 = 1,240.04/x
  3. Step 3: Cross multiply
    1,660.32x = 2,288.68 × 1,240.04
  4. Step 4: Simplify right side
    1,660.32x = 2,838,057.37
  5. Step 5: Solve for x
    x = 2,838,057.37/1,660.32
  6. Step 6: Final answer
    x = 1,709.34

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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.