Home / 2,931.43-4,043.30-1,812.90

Finding the Fourth Proportional to 2,931.43, 4,043.30 and 1,812.90

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Solution

The fourth proportional to 2,931.43, 4,043.30 and 1,812.90 is: 2,500.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.43 : 4,043.30 = 1,812.90 : x
  2. Step 2: Convert to fraction form
    2,931.43/4,043.30 = 1,812.90/x
  3. Step 3: Cross multiply
    2,931.43x = 4,043.30 × 1,812.90
  4. Step 4: Simplify right side
    2,931.43x = 7,330,115.36
  5. Step 5: Solve for x
    x = 7,330,115.36/2,931.43
  6. Step 6: Final answer
    x = 2,500.52

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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.