Home / 7,429.19-11,140.74-2,749.55

Finding the Fourth Proportional to 7,429.19, 11,140.74 and 2,749.55

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Solution

The fourth proportional to 7,429.19, 11,140.74 and 2,749.55 is: 4,123.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.19 : 11,140.74 = 2,749.55 : x
  2. Step 2: Convert to fraction form
    7,429.19/11,140.74 = 2,749.55/x
  3. Step 3: Cross multiply
    7,429.19x = 11,140.74 × 2,749.55
  4. Step 4: Simplify right side
    7,429.19x = 30,631,965.96
  5. Step 5: Solve for x
    x = 30,631,965.96/7,429.19
  6. Step 6: Final answer
    x = 4,123.19

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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.