Home / 2,864.12-3,952.54-1,605.46

Finding the Fourth Proportional to 2,864.12, 3,952.54 and 1,605.46

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Solution

The fourth proportional to 2,864.12, 3,952.54 and 1,605.46 is: 2,215.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.12 : 3,952.54 = 1,605.46 : x
  2. Step 2: Convert to fraction form
    2,864.12/3,952.54 = 1,605.46/x
  3. Step 3: Cross multiply
    2,864.12x = 3,952.54 × 1,605.46
  4. Step 4: Simplify right side
    2,864.12x = 6,345,635.91
  5. Step 5: Solve for x
    x = 6,345,635.91/2,864.12
  6. Step 6: Final answer
    x = 2,215.56

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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.