Home / 2,824.45-3,897.89-1,565.65

Finding the Fourth Proportional to 2,824.45, 3,897.89 and 1,565.65

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Solution

The fourth proportional to 2,824.45, 3,897.89 and 1,565.65 is: 2,160.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,824.45 : 3,897.89 = 1,565.65 : x
  2. Step 2: Convert to fraction form
    2,824.45/3,897.89 = 1,565.65/x
  3. Step 3: Cross multiply
    2,824.45x = 3,897.89 × 1,565.65
  4. Step 4: Simplify right side
    2,824.45x = 6,102,731.48
  5. Step 5: Solve for x
    x = 6,102,731.48/2,824.45
  6. Step 6: Final answer
    x = 2,160.68

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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.