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Finding the Fourth Proportional to 3,572.16, 4,932.48 and 3,135.36

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Solution

The fourth proportional to 3,572.16, 4,932.48 and 3,135.36 is: 4,329.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.16 : 4,932.48 = 3,135.36 : x
  2. Step 2: Convert to fraction form
    3,572.16/4,932.48 = 3,135.36/x
  3. Step 3: Cross multiply
    3,572.16x = 4,932.48 × 3,135.36
  4. Step 4: Simplify right side
    3,572.16x = 15,465,100.49
  5. Step 5: Solve for x
    x = 15,465,100.49/3,572.16
  6. Step 6: Final answer
    x = 4,329.34

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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.