Home / 5,113.19-7,667.75-1,992.74

Finding the Fourth Proportional to 5,113.19, 7,667.75 and 1,992.74

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Solution

The fourth proportional to 5,113.19, 7,667.75 and 1,992.74 is: 2,988.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.19 : 7,667.75 = 1,992.74 : x
  2. Step 2: Convert to fraction form
    5,113.19/7,667.75 = 1,992.74/x
  3. Step 3: Cross multiply
    5,113.19x = 7,667.75 × 1,992.74
  4. Step 4: Simplify right side
    5,113.19x = 15,279,798.78
  5. Step 5: Solve for x
    x = 15,279,798.78/5,113.19
  6. Step 6: Final answer
    x = 2,988.31

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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.