Home / 7,540.48-10,405.91-4,137.46

Finding the Fourth Proportional to 7,540.48, 10,405.91 and 4,137.46

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Solution

The fourth proportional to 7,540.48, 10,405.91 and 4,137.46 is: 5,709.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.48 : 10,405.91 = 4,137.46 : x
  2. Step 2: Convert to fraction form
    7,540.48/10,405.91 = 4,137.46/x
  3. Step 3: Cross multiply
    7,540.48x = 10,405.91 × 4,137.46
  4. Step 4: Simplify right side
    7,540.48x = 43,054,036.39
  5. Step 5: Solve for x
    x = 43,054,036.39/7,540.48
  6. Step 6: Final answer
    x = 5,709.72

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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.