Home / 5,157.12-7,106.52-3,738.36

Finding the Fourth Proportional to 5,157.12, 7,106.52 and 3,738.36

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Solution

The fourth proportional to 5,157.12, 7,106.52 and 3,738.36 is: 5,151.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.12 : 7,106.52 = 3,738.36 : x
  2. Step 2: Convert to fraction form
    5,157.12/7,106.52 = 3,738.36/x
  3. Step 3: Cross multiply
    5,157.12x = 7,106.52 × 3,738.36
  4. Step 4: Simplify right side
    5,157.12x = 26,566,730.11
  5. Step 5: Solve for x
    x = 26,566,730.11/5,157.12
  6. Step 6: Final answer
    x = 5,151.47

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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.