Home / 4,900.79-7,352.43-2,126.79

Finding the Fourth Proportional to 4,900.79, 7,352.43 and 2,126.79

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Solution

The fourth proportional to 4,900.79, 7,352.43 and 2,126.79 is: 3,190.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,900.79 : 7,352.43 = 2,126.79 : x
  2. Step 2: Convert to fraction form
    4,900.79/7,352.43 = 2,126.79/x
  3. Step 3: Cross multiply
    4,900.79x = 7,352.43 × 2,126.79
  4. Step 4: Simplify right side
    4,900.79x = 15,637,054.78
  5. Step 5: Solve for x
    x = 15,637,054.78/4,900.79
  6. Step 6: Final answer
    x = 3,190.72

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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.