Home / 7,485.71-11,230.21-2,221.13

Finding the Fourth Proportional to 7,485.71, 11,230.21 and 2,221.13

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Solution

The fourth proportional to 7,485.71, 11,230.21 and 2,221.13 is: 3,332.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.71 : 11,230.21 = 2,221.13 : x
  2. Step 2: Convert to fraction form
    7,485.71/11,230.21 = 2,221.13/x
  3. Step 3: Cross multiply
    7,485.71x = 11,230.21 × 2,221.13
  4. Step 4: Simplify right side
    7,485.71x = 24,943,756.34
  5. Step 5: Solve for x
    x = 24,943,756.34/7,485.71
  6. Step 6: Final answer
    x = 3,332.18

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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.