Home / 7,718.01-11,574.60-2,787

Finding the Fourth Proportional to 7,718.01, 11,574.60 and 2,787

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Solution

The fourth proportional to 7,718.01, 11,574.60 and 2,787 is: 4,179.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.01 : 11,574.60 = 2,787 : x
  2. Step 2: Convert to fraction form
    7,718.01/11,574.60 = 2,787/x
  3. Step 3: Cross multiply
    7,718.01x = 11,574.60 × 2,787
  4. Step 4: Simplify right side
    7,718.01x = 32,258,410.20
  5. Step 5: Solve for x
    x = 32,258,410.20/7,718.01
  6. Step 6: Final answer
    x = 4,179.63

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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.