Home / 1,206.39-1,660.61-1,050.87

Finding the Fourth Proportional to 1,206.39, 1,660.61 and 1,050.87

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Solution

The fourth proportional to 1,206.39, 1,660.61 and 1,050.87 is: 1,446.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206.39 : 1,660.61 = 1,050.87 : x
  2. Step 2: Convert to fraction form
    1,206.39/1,660.61 = 1,050.87/x
  3. Step 3: Cross multiply
    1,206.39x = 1,660.61 × 1,050.87
  4. Step 4: Simplify right side
    1,206.39x = 1,745,079.98
  5. Step 5: Solve for x
    x = 1,745,079.98/1,206.39
  6. Step 6: Final answer
    x = 1,446.53

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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.