Home / 1,303.20-1,794.60-1,104.30

Finding the Fourth Proportional to 1,303.20, 1,794.60 and 1,104.30

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Solution

The fourth proportional to 1,303.20, 1,794.60 and 1,104.30 is: 1,520.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303.20 : 1,794.60 = 1,104.30 : x
  2. Step 2: Convert to fraction form
    1,303.20/1,794.60 = 1,104.30/x
  3. Step 3: Cross multiply
    1,303.20x = 1,794.60 × 1,104.30
  4. Step 4: Simplify right side
    1,303.20x = 1,981,776.78
  5. Step 5: Solve for x
    x = 1,981,776.78/1,303.20
  6. Step 6: Final answer
    x = 1,520.70

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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.