Home / 1,678.32-2,519.58-1,132.92

Finding the Fourth Proportional to 1,678.32, 2,519.58 and 1,132.92

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Solution

The fourth proportional to 1,678.32, 2,519.58 and 1,132.92 is: 1,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678.32 : 2,519.58 = 1,132.92 : x
  2. Step 2: Convert to fraction form
    1,678.32/2,519.58 = 1,132.92/x
  3. Step 3: Cross multiply
    1,678.32x = 2,519.58 × 1,132.92
  4. Step 4: Simplify right side
    1,678.32x = 2,854,482.57
  5. Step 5: Solve for x
    x = 2,854,482.57/1,678.32
  6. Step 6: Final answer
    x = 1,700.80

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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.