Home / 4,138.48-5,703.78-3,655.72

Finding the Fourth Proportional to 4,138.48, 5,703.78 and 3,655.72

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Solution

The fourth proportional to 4,138.48, 5,703.78 and 3,655.72 is: 5,038.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.48 : 5,703.78 = 3,655.72 : x
  2. Step 2: Convert to fraction form
    4,138.48/5,703.78 = 3,655.72/x
  3. Step 3: Cross multiply
    4,138.48x = 5,703.78 × 3,655.72
  4. Step 4: Simplify right side
    4,138.48x = 20,851,422.62
  5. Step 5: Solve for x
    x = 20,851,422.62/4,138.48
  6. Step 6: Final answer
    x = 5,038.43

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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.