Home / 7,050-9,728.95-3,906.18

Finding the Fourth Proportional to 7,050, 9,728.95 and 3,906.18

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Solution

The fourth proportional to 7,050, 9,728.95 and 3,906.18 is: 5,390.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,050 : 9,728.95 = 3,906.18 : x
  2. Step 2: Convert to fraction form
    7,050/9,728.95 = 3,906.18/x
  3. Step 3: Cross multiply
    7,050x = 9,728.95 × 3,906.18
  4. Step 4: Simplify right side
    7,050x = 38,003,029.91
  5. Step 5: Solve for x
    x = 38,003,029.91/7,050
  6. Step 6: Final answer
    x = 5,390.50

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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.