Home / 7,117.20-10,675.80-3,168.45

Finding the Fourth Proportional to 7,117.20, 10,675.80 and 3,168.45

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Solution

The fourth proportional to 7,117.20, 10,675.80 and 3,168.45 is: 4,752.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.20 : 10,675.80 = 3,168.45 : x
  2. Step 2: Convert to fraction form
    7,117.20/10,675.80 = 3,168.45/x
  3. Step 3: Cross multiply
    7,117.20x = 10,675.80 × 3,168.45
  4. Step 4: Simplify right side
    7,117.20x = 33,825,738.51
  5. Step 5: Solve for x
    x = 33,825,738.51/7,117.20
  6. Step 6: Final answer
    x = 4,752.68

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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.