Home / 5,681.19-8,521.83-2,170.25

Finding the Fourth Proportional to 5,681.19, 8,521.83 and 2,170.25

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Solution

The fourth proportional to 5,681.19, 8,521.83 and 2,170.25 is: 3,255.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.19 : 8,521.83 = 2,170.25 : x
  2. Step 2: Convert to fraction form
    5,681.19/8,521.83 = 2,170.25/x
  3. Step 3: Cross multiply
    5,681.19x = 8,521.83 × 2,170.25
  4. Step 4: Simplify right side
    5,681.19x = 18,494,490.71
  5. Step 5: Solve for x
    x = 18,494,490.71/5,681.19
  6. Step 6: Final answer
    x = 3,255.39

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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.