Home / 2,864.30-3,952.85-1,605.37

Finding the Fourth Proportional to 2,864.30, 3,952.85 and 1,605.37

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Solution

The fourth proportional to 2,864.30, 3,952.85 and 1,605.37 is: 2,215.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.30 : 3,952.85 = 1,605.37 : x
  2. Step 2: Convert to fraction form
    2,864.30/3,952.85 = 1,605.37/x
  3. Step 3: Cross multiply
    2,864.30x = 3,952.85 × 1,605.37
  4. Step 4: Simplify right side
    2,864.30x = 6,345,785.34
  5. Step 5: Solve for x
    x = 6,345,785.34/2,864.30
  6. Step 6: Final answer
    x = 2,215.47

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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.