Home / 7,351.51-11,028.90-2,420.81

Finding the Fourth Proportional to 7,351.51, 11,028.90 and 2,420.81

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Solution

The fourth proportional to 7,351.51, 11,028.90 and 2,420.81 is: 3,631.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,351.51 : 11,028.90 = 2,420.81 : x
  2. Step 2: Convert to fraction form
    7,351.51/11,028.90 = 2,420.81/x
  3. Step 3: Cross multiply
    7,351.51x = 11,028.90 × 2,420.81
  4. Step 4: Simplify right side
    7,351.51x = 26,698,880.70
  5. Step 5: Solve for x
    x = 26,698,880.70/7,351.51
  6. Step 6: Final answer
    x = 3,631.75

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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.