Home / 7,538.36-10,402.80-4,181

Finding the Fourth Proportional to 7,538.36, 10,402.80 and 4,181

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Solution

The fourth proportional to 7,538.36, 10,402.80 and 4,181 is: 5,769.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.36 : 10,402.80 = 4,181 : x
  2. Step 2: Convert to fraction form
    7,538.36/10,402.80 = 4,181/x
  3. Step 3: Cross multiply
    7,538.36x = 10,402.80 × 4,181
  4. Step 4: Simplify right side
    7,538.36x = 43,494,106.80
  5. Step 5: Solve for x
    x = 43,494,106.80/7,538.36
  6. Step 6: Final answer
    x = 5,769.70

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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.