Home / 3,148.53-4,722.79-1,688.37

Finding the Fourth Proportional to 3,148.53, 4,722.79 and 1,688.37

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Solution

The fourth proportional to 3,148.53, 4,722.79 and 1,688.37 is: 2,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.53 : 4,722.79 = 1,688.37 : x
  2. Step 2: Convert to fraction form
    3,148.53/4,722.79 = 1,688.37/x
  3. Step 3: Cross multiply
    3,148.53x = 4,722.79 × 1,688.37
  4. Step 4: Simplify right side
    3,148.53x = 7,973,816.95
  5. Step 5: Solve for x
    x = 7,973,816.95/3,148.53
  6. Step 6: Final answer
    x = 2,532.55

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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.