Home / 1,707.68-2,355.28-1,235.66

Finding the Fourth Proportional to 1,707.68, 2,355.28 and 1,235.66

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Solution

The fourth proportional to 1,707.68, 2,355.28 and 1,235.66 is: 1,704.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707.68 : 2,355.28 = 1,235.66 : x
  2. Step 2: Convert to fraction form
    1,707.68/2,355.28 = 1,235.66/x
  3. Step 3: Cross multiply
    1,707.68x = 2,355.28 × 1,235.66
  4. Step 4: Simplify right side
    1,707.68x = 2,910,310.42
  5. Step 5: Solve for x
    x = 2,910,310.42/1,707.68
  6. Step 6: Final answer
    x = 1,704.25

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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.