Home / 5,213.02-7,820.82-1,515.52

Finding the Fourth Proportional to 5,213.02, 7,820.82 and 1,515.52

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Solution

The fourth proportional to 5,213.02, 7,820.82 and 1,515.52 is: 2,273.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.02 : 7,820.82 = 1,515.52 : x
  2. Step 2: Convert to fraction form
    5,213.02/7,820.82 = 1,515.52/x
  3. Step 3: Cross multiply
    5,213.02x = 7,820.82 × 1,515.52
  4. Step 4: Simplify right side
    5,213.02x = 11,852,609.13
  5. Step 5: Solve for x
    x = 11,852,609.13/5,213.02
  6. Step 6: Final answer
    x = 2,273.66

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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.