Home / 2,851.87-4,276.54-1,810.92

Finding the Fourth Proportional to 2,851.87, 4,276.54 and 1,810.92

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Solution

The fourth proportional to 2,851.87, 4,276.54 and 1,810.92 is: 2,715.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.87 : 4,276.54 = 1,810.92 : x
  2. Step 2: Convert to fraction form
    2,851.87/4,276.54 = 1,810.92/x
  3. Step 3: Cross multiply
    2,851.87x = 4,276.54 × 1,810.92
  4. Step 4: Simplify right side
    2,851.87x = 7,744,471.82
  5. Step 5: Solve for x
    x = 7,744,471.82/2,851.87
  6. Step 6: Final answer
    x = 2,715.58

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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.