Home / 1,682.40-2,319.30-1,183.52

Finding the Fourth Proportional to 1,682.40, 2,319.30 and 1,183.52

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Solution

The fourth proportional to 1,682.40, 2,319.30 and 1,183.52 is: 1,631.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682.40 : 2,319.30 = 1,183.52 : x
  2. Step 2: Convert to fraction form
    1,682.40/2,319.30 = 1,183.52/x
  3. Step 3: Cross multiply
    1,682.40x = 2,319.30 × 1,183.52
  4. Step 4: Simplify right side
    1,682.40x = 2,744,926.34
  5. Step 5: Solve for x
    x = 2,744,926.34/1,682.40
  6. Step 6: Final answer
    x = 1,631.55

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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.