Home / 5,378.67-8,069.63-1,681.29

Finding the Fourth Proportional to 5,378.67, 8,069.63 and 1,681.29

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Solution

The fourth proportional to 5,378.67, 8,069.63 and 1,681.29 is: 2,522.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.67 : 8,069.63 = 1,681.29 : x
  2. Step 2: Convert to fraction form
    5,378.67/8,069.63 = 1,681.29/x
  3. Step 3: Cross multiply
    5,378.67x = 8,069.63 × 1,681.29
  4. Step 4: Simplify right side
    5,378.67x = 13,567,388.22
  5. Step 5: Solve for x
    x = 13,567,388.22/5,378.67
  6. Step 6: Final answer
    x = 2,522.44

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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.