Home / 1,192.08-1,641.47-1,080.86

Finding the Fourth Proportional to 1,192.08, 1,641.47 and 1,080.86

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Solution

The fourth proportional to 1,192.08, 1,641.47 and 1,080.86 is: 1,488.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.08 : 1,641.47 = 1,080.86 : x
  2. Step 2: Convert to fraction form
    1,192.08/1,641.47 = 1,080.86/x
  3. Step 3: Cross multiply
    1,192.08x = 1,641.47 × 1,080.86
  4. Step 4: Simplify right side
    1,192.08x = 1,774,185.65
  5. Step 5: Solve for x
    x = 1,774,185.65/1,192.08
  6. Step 6: Final answer
    x = 1,488.31

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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.