Home / 3,312.60-4,969.50-1,091.55

Finding the Fourth Proportional to 3,312.60, 4,969.50 and 1,091.55

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Solution

The fourth proportional to 3,312.60, 4,969.50 and 1,091.55 is: 1,637.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.60 : 4,969.50 = 1,091.55 : x
  2. Step 2: Convert to fraction form
    3,312.60/4,969.50 = 1,091.55/x
  3. Step 3: Cross multiply
    3,312.60x = 4,969.50 × 1,091.55
  4. Step 4: Simplify right side
    3,312.60x = 5,424,457.73
  5. Step 5: Solve for x
    x = 5,424,457.73/3,312.60
  6. Step 6: Final answer
    x = 1,637.52

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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.