Home / 5,521.79-7,618.47-3,163.46

Finding the Fourth Proportional to 5,521.79, 7,618.47 and 3,163.46

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Solution

The fourth proportional to 5,521.79, 7,618.47 and 3,163.46 is: 4,364.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.79 : 7,618.47 = 3,163.46 : x
  2. Step 2: Convert to fraction form
    5,521.79/7,618.47 = 3,163.46/x
  3. Step 3: Cross multiply
    5,521.79x = 7,618.47 × 3,163.46
  4. Step 4: Simplify right side
    5,521.79x = 24,100,725.11
  5. Step 5: Solve for x
    x = 24,100,725.11/5,521.79
  6. Step 6: Final answer
    x = 4,364.66

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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.