Home / 3,312.50-4,969.64-1,091.75

Finding the Fourth Proportional to 3,312.50, 4,969.64 and 1,091.75

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Solution

The fourth proportional to 3,312.50, 4,969.64 and 1,091.75 is: 1,637.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.50 : 4,969.64 = 1,091.75 : x
  2. Step 2: Convert to fraction form
    3,312.50/4,969.64 = 1,091.75/x
  3. Step 3: Cross multiply
    3,312.50x = 4,969.64 × 1,091.75
  4. Step 4: Simplify right side
    3,312.50x = 5,425,610.31
  5. Step 5: Solve for x
    x = 5,425,610.31/3,312.50
  6. Step 6: Final answer
    x = 1,637.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.