Home / 3,328.78-4,595.87-2,071.21

Finding the Fourth Proportional to 3,328.78, 4,595.87 and 2,071.21

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Solution

The fourth proportional to 3,328.78, 4,595.87 and 2,071.21 is: 2,859.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,328.78 : 4,595.87 = 2,071.21 : x
  2. Step 2: Convert to fraction form
    3,328.78/4,595.87 = 2,071.21/x
  3. Step 3: Cross multiply
    3,328.78x = 4,595.87 × 2,071.21
  4. Step 4: Simplify right side
    3,328.78x = 9,519,011.90
  5. Step 5: Solve for x
    x = 9,519,011.90/3,328.78
  6. Step 6: Final answer
    x = 2,859.61

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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.