Home / 2,300.13-3,173.85-1,305.11

Finding the Fourth Proportional to 2,300.13, 3,173.85 and 1,305.11

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Solution

The fourth proportional to 2,300.13, 3,173.85 and 1,305.11 is: 1,800.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,300.13 : 3,173.85 = 1,305.11 : x
  2. Step 2: Convert to fraction form
    2,300.13/3,173.85 = 1,305.11/x
  3. Step 3: Cross multiply
    2,300.13x = 3,173.85 × 1,305.11
  4. Step 4: Simplify right side
    2,300.13x = 4,142,231.31
  5. Step 5: Solve for x
    x = 4,142,231.31/2,300.13
  6. Step 6: Final answer
    x = 1,800.87

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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.