Home / 1,178.16-1,626.17-735.79

Finding the Fourth Proportional to 1,178.16, 1,626.17 and 735.79

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Solution

The fourth proportional to 1,178.16, 1,626.17 and 735.79 is: 1,015.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178.16 : 1,626.17 = 735.79 : x
  2. Step 2: Convert to fraction form
    1,178.16/1,626.17 = 735.79/x
  3. Step 3: Cross multiply
    1,178.16x = 1,626.17 × 735.79
  4. Step 4: Simplify right side
    1,178.16x = 1,196,519.62
  5. Step 5: Solve for x
    x = 1,196,519.62/1,178.16
  6. Step 6: Final answer
    x = 1,015.58

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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.