Home / 5,378.77-8,069.24-1,915.93

Finding the Fourth Proportional to 5,378.77, 8,069.24 and 1,915.93

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Solution

The fourth proportional to 5,378.77, 8,069.24 and 1,915.93 is: 2,874.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378.77 : 8,069.24 = 1,915.93 : x
  2. Step 2: Convert to fraction form
    5,378.77/8,069.24 = 1,915.93/x
  3. Step 3: Cross multiply
    5,378.77x = 8,069.24 × 1,915.93
  4. Step 4: Simplify right side
    5,378.77x = 15,460,098.99
  5. Step 5: Solve for x
    x = 15,460,098.99/5,378.77
  6. Step 6: Final answer
    x = 2,874.28

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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.