Home / 5,379.45-8,069.32-1,681.59

Finding the Fourth Proportional to 5,379.45, 8,069.32 and 1,681.59

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Solution

The fourth proportional to 5,379.45, 8,069.32 and 1,681.59 is: 2,522.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.45 : 8,069.32 = 1,681.59 : x
  2. Step 2: Convert to fraction form
    5,379.45/8,069.32 = 1,681.59/x
  3. Step 3: Cross multiply
    5,379.45x = 8,069.32 × 1,681.59
  4. Step 4: Simplify right side
    5,379.45x = 13,569,320.18
  5. Step 5: Solve for x
    x = 13,569,320.18/5,379.45
  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.