Home / 5,148.25-7,722.44-1,685.50

Finding the Fourth Proportional to 5,148.25, 7,722.44 and 1,685.50

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Solution

The fourth proportional to 5,148.25, 7,722.44 and 1,685.50 is: 2,528.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.25 : 7,722.44 = 1,685.50 : x
  2. Step 2: Convert to fraction form
    5,148.25/7,722.44 = 1,685.50/x
  3. Step 3: Cross multiply
    5,148.25x = 7,722.44 × 1,685.50
  4. Step 4: Simplify right side
    5,148.25x = 13,016,176.83
  5. Step 5: Solve for x
    x = 13,016,176.83/5,148.25
  6. Step 6: Final answer
    x = 2,528.27

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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.