Home / 3,312.19-4,969.02-1,120.87

Finding the Fourth Proportional to 3,312.19, 4,969.02 and 1,120.87

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Solution

The fourth proportional to 3,312.19, 4,969.02 and 1,120.87 is: 1,681.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.19 : 4,969.02 = 1,120.87 : x
  2. Step 2: Convert to fraction form
    3,312.19/4,969.02 = 1,120.87/x
  3. Step 3: Cross multiply
    3,312.19x = 4,969.02 × 1,120.87
  4. Step 4: Simplify right side
    3,312.19x = 5,569,600.60
  5. Step 5: Solve for x
    x = 5,569,600.60/3,312.19
  6. Step 6: Final answer
    x = 1,681.55

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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.