Home / 5,213.10-7,820.54-1,926.21

Finding the Fourth Proportional to 5,213.10, 7,820.54 and 1,926.21

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Solution

The fourth proportional to 5,213.10, 7,820.54 and 1,926.21 is: 2,889.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.10 : 7,820.54 = 1,926.21 : x
  2. Step 2: Convert to fraction form
    5,213.10/7,820.54 = 1,926.21/x
  3. Step 3: Cross multiply
    5,213.10x = 7,820.54 × 1,926.21
  4. Step 4: Simplify right side
    5,213.10x = 15,064,002.35
  5. Step 5: Solve for x
    x = 15,064,002.35/5,213.10
  6. Step 6: Final answer
    x = 2,889.64

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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.