Home / 5,681.16-8,515.86-2,170.22

Finding the Fourth Proportional to 5,681.16, 8,515.86 and 2,170.22

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Solution

The fourth proportional to 5,681.16, 8,515.86 and 2,170.22 is: 3,253.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.16 : 8,515.86 = 2,170.22 : x
  2. Step 2: Convert to fraction form
    5,681.16/8,515.86 = 2,170.22/x
  3. Step 3: Cross multiply
    5,681.16x = 8,515.86 × 2,170.22
  4. Step 4: Simplify right side
    5,681.16x = 18,481,289.69
  5. Step 5: Solve for x
    x = 18,481,289.69/5,681.16
  6. Step 6: Final answer
    x = 3,253.08

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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.