Home / 3,638.18-5,457.31-2,340.56

Finding the Fourth Proportional to 3,638.18, 5,457.31 and 2,340.56

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Solution

The fourth proportional to 3,638.18, 5,457.31 and 2,340.56 is: 3,510.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.18 : 5,457.31 = 2,340.56 : x
  2. Step 2: Convert to fraction form
    3,638.18/5,457.31 = 2,340.56/x
  3. Step 3: Cross multiply
    3,638.18x = 5,457.31 × 2,340.56
  4. Step 4: Simplify right side
    3,638.18x = 12,773,169.29
  5. Step 5: Solve for x
    x = 12,773,169.29/3,638.18
  6. Step 6: Final answer
    x = 3,510.87

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1.5x scale

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.