Home / 7,001.61-9,660.56-3,976.07

Finding the Fourth Proportional to 7,001.61, 9,660.56 and 3,976.07

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Solution

The fourth proportional to 7,001.61, 9,660.56 and 3,976.07 is: 5,486.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,001.61 : 9,660.56 = 3,976.07 : x
  2. Step 2: Convert to fraction form
    7,001.61/9,660.56 = 3,976.07/x
  3. Step 3: Cross multiply
    7,001.61x = 9,660.56 × 3,976.07
  4. Step 4: Simplify right side
    7,001.61x = 38,410,994.62
  5. Step 5: Solve for x
    x = 38,410,994.62/7,001.61
  6. Step 6: Final answer
    x = 5,486.02

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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.