Home / 3,275.34-4,518.78-2,156.93

Finding the Fourth Proportional to 3,275.34, 4,518.78 and 2,156.93

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Solution

The fourth proportional to 3,275.34, 4,518.78 and 2,156.93 is: 2,975.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.34 : 4,518.78 = 2,156.93 : x
  2. Step 2: Convert to fraction form
    3,275.34/4,518.78 = 2,156.93/x
  3. Step 3: Cross multiply
    3,275.34x = 4,518.78 × 2,156.93
  4. Step 4: Simplify right side
    3,275.34x = 9,746,692.15
  5. Step 5: Solve for x
    x = 9,746,692.15/3,275.34
  6. Step 6: Final answer
    x = 2,975.78

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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.