Home / 7,281.57-10,920.37-2,015.32

Finding the Fourth Proportional to 7,281.57, 10,920.37 and 2,015.32

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Solution

The fourth proportional to 7,281.57, 10,920.37 and 2,015.32 is: 3,022.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.57 : 10,920.37 = 2,015.32 : x
  2. Step 2: Convert to fraction form
    7,281.57/10,920.37 = 2,015.32/x
  3. Step 3: Cross multiply
    7,281.57x = 10,920.37 × 2,015.32
  4. Step 4: Simplify right side
    7,281.57x = 22,008,040.07
  5. Step 5: Solve for x
    x = 22,008,040.07/7,281.57
  6. Step 6: Final answer
    x = 3,022.43

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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.