Home / 2,072.32-2,859.44-1,315.92

Finding the Fourth Proportional to 2,072.32, 2,859.44 and 1,315.92

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Solution

The fourth proportional to 2,072.32, 2,859.44 and 1,315.92 is: 1,815.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,072.32 : 2,859.44 = 1,315.92 : x
  2. Step 2: Convert to fraction form
    2,072.32/2,859.44 = 1,315.92/x
  3. Step 3: Cross multiply
    2,072.32x = 2,859.44 × 1,315.92
  4. Step 4: Simplify right side
    2,072.32x = 3,762,794.28
  5. Step 5: Solve for x
    x = 3,762,794.28/2,072.32
  6. Step 6: Final answer
    x = 1,815.74

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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.