Home / 2,762.24-3,815.20-1,876.56

Finding the Fourth Proportional to 2,762.24, 3,815.20 and 1,876.56

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Solution

The fourth proportional to 2,762.24, 3,815.20 and 1,876.56 is: 2,591.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.24 : 3,815.20 = 1,876.56 : x
  2. Step 2: Convert to fraction form
    2,762.24/3,815.20 = 1,876.56/x
  3. Step 3: Cross multiply
    2,762.24x = 3,815.20 × 1,876.56
  4. Step 4: Simplify right side
    2,762.24x = 7,159,451.71
  5. Step 5: Solve for x
    x = 7,159,451.71/2,762.24
  6. Step 6: Final answer
    x = 2,591.90

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1.5x scale

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.