Home / 7,117.70-10,667.55-2,729.30

Finding the Fourth Proportional to 7,117.70, 10,667.55 and 2,729.30

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Solution

The fourth proportional to 7,117.70, 10,667.55 and 2,729.30 is: 4,090.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.70 : 10,667.55 = 2,729.30 : x
  2. Step 2: Convert to fraction form
    7,117.70/10,667.55 = 2,729.30/x
  3. Step 3: Cross multiply
    7,117.70x = 10,667.55 × 2,729.30
  4. Step 4: Simplify right side
    7,117.70x = 29,114,944.22
  5. Step 5: Solve for x
    x = 29,114,944.22/7,117.70
  6. Step 6: Final answer
    x = 4,090.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.