Home / 5,148-7,722.27-1,685.25

Finding the Fourth Proportional to 5,148, 7,722.27 and 1,685.25

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Solution

The fourth proportional to 5,148, 7,722.27 and 1,685.25 is: 2,527.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148 : 7,722.27 = 1,685.25 : x
  2. Step 2: Convert to fraction form
    5,148/7,722.27 = 1,685.25/x
  3. Step 3: Cross multiply
    5,148x = 7,722.27 × 1,685.25
  4. Step 4: Simplify right side
    5,148x = 13,013,955.52
  5. Step 5: Solve for x
    x = 13,013,955.52/5,148
  6. Step 6: Final answer
    x = 2,527.96

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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.