Home / 5,388.21-8,082.81-1,492.65

Finding the Fourth Proportional to 5,388.21, 8,082.81 and 1,492.65

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Solution

The fourth proportional to 5,388.21, 8,082.81 and 1,492.65 is: 2,239.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.21 : 8,082.81 = 1,492.65 : x
  2. Step 2: Convert to fraction form
    5,388.21/8,082.81 = 1,492.65/x
  3. Step 3: Cross multiply
    5,388.21x = 8,082.81 × 1,492.65
  4. Step 4: Simplify right side
    5,388.21x = 12,064,806.35
  5. Step 5: Solve for x
    x = 12,064,806.35/5,388.21
  6. Step 6: Final answer
    x = 2,239.11

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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.