Home / 2,685.92-4,045.81-2,521.90

Finding the Fourth Proportional to 2,685.92, 4,045.81 and 2,521.90

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Solution

The fourth proportional to 2,685.92, 4,045.81 and 2,521.90 is: 3,798.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,685.92 : 4,045.81 = 2,521.90 : x
  2. Step 2: Convert to fraction form
    2,685.92/4,045.81 = 2,521.90/x
  3. Step 3: Cross multiply
    2,685.92x = 4,045.81 × 2,521.90
  4. Step 4: Simplify right side
    2,685.92x = 10,203,128.24
  5. Step 5: Solve for x
    x = 10,203,128.24/2,685.92
  6. Step 6: Final answer
    x = 3,798.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.