Home / 2,143.13-3,215.25-604.13

Finding the Fourth Proportional to 2,143.13, 3,215.25 and 604.13

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Solution

The fourth proportional to 2,143.13, 3,215.25 and 604.13 is: 906.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.13 : 3,215.25 = 604.13 : x
  2. Step 2: Convert to fraction form
    2,143.13/3,215.25 = 604.13/x
  3. Step 3: Cross multiply
    2,143.13x = 3,215.25 × 604.13
  4. Step 4: Simplify right side
    2,143.13x = 1,942,412.91
  5. Step 5: Solve for x
    x = 1,942,412.91/2,143.13
  6. Step 6: Final answer
    x = 906.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.