Home / 5,276.99-7,915.33-2,156.11

Finding the Fourth Proportional to 5,276.99, 7,915.33 and 2,156.11

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Solution

The fourth proportional to 5,276.99, 7,915.33 and 2,156.11 is: 3,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.99 : 7,915.33 = 2,156.11 : x
  2. Step 2: Convert to fraction form
    5,276.99/7,915.33 = 2,156.11/x
  3. Step 3: Cross multiply
    5,276.99x = 7,915.33 × 2,156.11
  4. Step 4: Simplify right side
    5,276.99x = 17,066,322.17
  5. Step 5: Solve for x
    x = 17,066,322.17/5,276.99
  6. Step 6: Final answer
    x = 3,234.10

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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.