Home / 1,194.32-1,644.36-1,079.12

Finding the Fourth Proportional to 1,194.32, 1,644.36 and 1,079.12

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Solution

The fourth proportional to 1,194.32, 1,644.36 and 1,079.12 is: 1,485.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.32 : 1,644.36 = 1,079.12 : x
  2. Step 2: Convert to fraction form
    1,194.32/1,644.36 = 1,079.12/x
  3. Step 3: Cross multiply
    1,194.32x = 1,644.36 × 1,079.12
  4. Step 4: Simplify right side
    1,194.32x = 1,774,461.76
  5. Step 5: Solve for x
    x = 1,774,461.76/1,194.32
  6. Step 6: Final answer
    x = 1,485.75

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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.