Home / 2,387.87-3,295.64-1,340.27

Finding the Fourth Proportional to 2,387.87, 3,295.64 and 1,340.27

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Solution

The fourth proportional to 2,387.87, 3,295.64 and 1,340.27 is: 1,849.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.87 : 3,295.64 = 1,340.27 : x
  2. Step 2: Convert to fraction form
    2,387.87/3,295.64 = 1,340.27/x
  3. Step 3: Cross multiply
    2,387.87x = 3,295.64 × 1,340.27
  4. Step 4: Simplify right side
    2,387.87x = 4,417,047.42
  5. Step 5: Solve for x
    x = 4,417,047.42/2,387.87
  6. Step 6: Final answer
    x = 1,849.79

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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.