Home / 2,865.16-3,952.32-1,685.92

Finding the Fourth Proportional to 2,865.16, 3,952.32 and 1,685.92

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Solution

The fourth proportional to 2,865.16, 3,952.32 and 1,685.92 is: 2,325.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.16 : 3,952.32 = 1,685.92 : x
  2. Step 2: Convert to fraction form
    2,865.16/3,952.32 = 1,685.92/x
  3. Step 3: Cross multiply
    2,865.16x = 3,952.32 × 1,685.92
  4. Step 4: Simplify right side
    2,865.16x = 6,663,295.33
  5. Step 5: Solve for x
    x = 6,663,295.33/2,865.16
  6. Step 6: Final answer
    x = 2,325.63

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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.