Home / 2,864.46-4,292.73-2,130.78

Finding the Fourth Proportional to 2,864.46, 4,292.73 and 2,130.78

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Solution

The fourth proportional to 2,864.46, 4,292.73 and 2,130.78 is: 3,193.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.46 : 4,292.73 = 2,130.78 : x
  2. Step 2: Convert to fraction form
    2,864.46/4,292.73 = 2,130.78/x
  3. Step 3: Cross multiply
    2,864.46x = 4,292.73 × 2,130.78
  4. Step 4: Simplify right side
    2,864.46x = 9,146,863.23
  5. Step 5: Solve for x
    x = 9,146,863.23/2,864.46
  6. Step 6: Final answer
    x = 3,193.22

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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.