Home / 1,923.60-2,655.45-1,126.82

Finding the Fourth Proportional to 1,923.60, 2,655.45 and 1,126.82

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Solution

The fourth proportional to 1,923.60, 2,655.45 and 1,126.82 is: 1,555.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,923.60 : 2,655.45 = 1,126.82 : x
  2. Step 2: Convert to fraction form
    1,923.60/2,655.45 = 1,126.82/x
  3. Step 3: Cross multiply
    1,923.60x = 2,655.45 × 1,126.82
  4. Step 4: Simplify right side
    1,923.60x = 2,992,205.12
  5. Step 5: Solve for x
    x = 2,992,205.12/1,923.60
  6. Step 6: Final answer
    x = 1,555.52

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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.