Home / 7,837.21-11,756.49-2,570.64

Finding the Fourth Proportional to 7,837.21, 11,756.49 and 2,570.64

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Solution

The fourth proportional to 7,837.21, 11,756.49 and 2,570.64 is: 3,856.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,837.21 : 11,756.49 = 2,570.64 : x
  2. Step 2: Convert to fraction form
    7,837.21/11,756.49 = 2,570.64/x
  3. Step 3: Cross multiply
    7,837.21x = 11,756.49 × 2,570.64
  4. Step 4: Simplify right side
    7,837.21x = 30,221,664.19
  5. Step 5: Solve for x
    x = 30,221,664.19/7,837.21
  6. Step 6: Final answer
    x = 3,856.18

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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.