Home / 5,315.79-7,988.27-3,241.79

Finding the Fourth Proportional to 5,315.79, 7,988.27 and 3,241.79

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Solution

The fourth proportional to 5,315.79, 7,988.27 and 3,241.79 is: 4,871.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.79 : 7,988.27 = 3,241.79 : x
  2. Step 2: Convert to fraction form
    5,315.79/7,988.27 = 3,241.79/x
  3. Step 3: Cross multiply
    5,315.79x = 7,988.27 × 3,241.79
  4. Step 4: Simplify right side
    5,315.79x = 25,896,237.65
  5. Step 5: Solve for x
    x = 25,896,237.65/5,315.79
  6. Step 6: Final answer
    x = 4,871.57

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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.