Home / 2,402.32-3,315.09-1,340.20

Finding the Fourth Proportional to 2,402.32, 3,315.09 and 1,340.20

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Solution

The fourth proportional to 2,402.32, 3,315.09 and 1,340.20 is: 1,849.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,402.32 : 3,315.09 = 1,340.20 : x
  2. Step 2: Convert to fraction form
    2,402.32/3,315.09 = 1,340.20/x
  3. Step 3: Cross multiply
    2,402.32x = 3,315.09 × 1,340.20
  4. Step 4: Simplify right side
    2,402.32x = 4,442,883.62
  5. Step 5: Solve for x
    x = 4,442,883.62/2,402.32
  6. Step 6: Final answer
    x = 1,849.41

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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.