Home / 3,312.05-4,567.95-2,912.85

Finding the Fourth Proportional to 3,312.05, 4,567.95 and 2,912.85

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Solution

The fourth proportional to 3,312.05, 4,567.95 and 2,912.85 is: 4,017.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.05 : 4,567.95 = 2,912.85 : x
  2. Step 2: Convert to fraction form
    3,312.05/4,567.95 = 2,912.85/x
  3. Step 3: Cross multiply
    3,312.05x = 4,567.95 × 2,912.85
  4. Step 4: Simplify right side
    3,312.05x = 13,305,753.16
  5. Step 5: Solve for x
    x = 13,305,753.16/3,312.05
  6. Step 6: Final answer
    x = 4,017.38

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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.