Home / 3,139.57-4,706.65-1,289.53

Finding the Fourth Proportional to 3,139.57, 4,706.65 and 1,289.53

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Solution

The fourth proportional to 3,139.57, 4,706.65 and 1,289.53 is: 1,933.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.57 : 4,706.65 = 1,289.53 : x
  2. Step 2: Convert to fraction form
    3,139.57/4,706.65 = 1,289.53/x
  3. Step 3: Cross multiply
    3,139.57x = 4,706.65 × 1,289.53
  4. Step 4: Simplify right side
    3,139.57x = 6,069,366.37
  5. Step 5: Solve for x
    x = 6,069,366.37/3,139.57
  6. Step 6: Final answer
    x = 1,933.18

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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.