Home / 2,281.70-3,145.89-1,904.13

Finding the Fourth Proportional to 2,281.70, 3,145.89 and 1,904.13

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Solution

The fourth proportional to 2,281.70, 3,145.89 and 1,904.13 is: 2,625.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.70 : 3,145.89 = 1,904.13 : x
  2. Step 2: Convert to fraction form
    2,281.70/3,145.89 = 1,904.13/x
  3. Step 3: Cross multiply
    2,281.70x = 3,145.89 × 1,904.13
  4. Step 4: Simplify right side
    2,281.70x = 5,990,170.49
  5. Step 5: Solve for x
    x = 5,990,170.49/2,281.70
  6. Step 6: Final answer
    x = 2,625.32

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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.