Home / 2,438.65-3,365.31-1,319.56

Finding the Fourth Proportional to 2,438.65, 3,365.31 and 1,319.56

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Solution

The fourth proportional to 2,438.65, 3,365.31 and 1,319.56 is: 1,820.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.65 : 3,365.31 = 1,319.56 : x
  2. Step 2: Convert to fraction form
    2,438.65/3,365.31 = 1,319.56/x
  3. Step 3: Cross multiply
    2,438.65x = 3,365.31 × 1,319.56
  4. Step 4: Simplify right side
    2,438.65x = 4,440,732.67
  5. Step 5: Solve for x
    x = 4,440,732.67/2,438.65
  6. Step 6: Final answer
    x = 1,820.98

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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.