Home / 5,135.28-7,090.74-3,823.08

Finding the Fourth Proportional to 5,135.28, 7,090.74 and 3,823.08

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Solution

The fourth proportional to 5,135.28, 7,090.74 and 3,823.08 is: 5,278.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.28 : 7,090.74 = 3,823.08 : x
  2. Step 2: Convert to fraction form
    5,135.28/7,090.74 = 3,823.08/x
  3. Step 3: Cross multiply
    5,135.28x = 7,090.74 × 3,823.08
  4. Step 4: Simplify right side
    5,135.28x = 27,108,466.28
  5. Step 5: Solve for x
    x = 27,108,466.28/5,135.28
  6. Step 6: Final answer
    x = 5,278.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.