Home / 5,213.01-7,820.75-1,515.33

Finding the Fourth Proportional to 5,213.01, 7,820.75 and 1,515.33

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Solution

The fourth proportional to 5,213.01, 7,820.75 and 1,515.33 is: 2,273.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.01 : 7,820.75 = 1,515.33 : x
  2. Step 2: Convert to fraction form
    5,213.01/7,820.75 = 1,515.33/x
  3. Step 3: Cross multiply
    5,213.01x = 7,820.75 × 1,515.33
  4. Step 4: Simplify right side
    5,213.01x = 11,851,009.52
  5. Step 5: Solve for x
    x = 11,851,009.52/5,213.01
  6. Step 6: Final answer
    x = 2,273.35

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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.