Home / 1,056.65-1,584.45-326.13

Finding the Fourth Proportional to 1,056.65, 1,584.45 and 326.13

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Solution

The fourth proportional to 1,056.65, 1,584.45 and 326.13 is: 489.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056.65 : 1,584.45 = 326.13 : x
  2. Step 2: Convert to fraction form
    1,056.65/1,584.45 = 326.13/x
  3. Step 3: Cross multiply
    1,056.65x = 1,584.45 × 326.13
  4. Step 4: Simplify right side
    1,056.65x = 516,735.05
  5. Step 5: Solve for x
    x = 516,735.05/1,056.65
  6. Step 6: Final answer
    x = 489.03

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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.