Home / 3,140.36-4,332.20-1,880.81

Finding the Fourth Proportional to 3,140.36, 4,332.20 and 1,880.81

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Solution

The fourth proportional to 3,140.36, 4,332.20 and 1,880.81 is: 2,594.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.36 : 4,332.20 = 1,880.81 : x
  2. Step 2: Convert to fraction form
    3,140.36/4,332.20 = 1,880.81/x
  3. Step 3: Cross multiply
    3,140.36x = 4,332.20 × 1,880.81
  4. Step 4: Simplify right side
    3,140.36x = 8,148,060.61
  5. Step 5: Solve for x
    x = 8,148,060.61/3,140.36
  6. Step 6: Final answer
    x = 2,594.62

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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.