Home / 1,182.96-1,639.38-1,159.92

Finding the Fourth Proportional to 1,182.96, 1,639.38 and 1,159.92

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Solution

The fourth proportional to 1,182.96, 1,639.38 and 1,159.92 is: 1,607.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182.96 : 1,639.38 = 1,159.92 : x
  2. Step 2: Convert to fraction form
    1,182.96/1,639.38 = 1,159.92/x
  3. Step 3: Cross multiply
    1,182.96x = 1,639.38 × 1,159.92
  4. Step 4: Simplify right side
    1,182.96x = 1,901,549.65
  5. Step 5: Solve for x
    x = 1,901,549.65/1,182.96
  6. Step 6: Final answer
    x = 1,607.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.