Home / 2,220.07-3,332.16-1,125.20

Finding the Fourth Proportional to 2,220.07, 3,332.16 and 1,125.20

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Solution

The fourth proportional to 2,220.07, 3,332.16 and 1,125.20 is: 1,688.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.07 : 3,332.16 = 1,125.20 : x
  2. Step 2: Convert to fraction form
    2,220.07/3,332.16 = 1,125.20/x
  3. Step 3: Cross multiply
    2,220.07x = 3,332.16 × 1,125.20
  4. Step 4: Simplify right side
    2,220.07x = 3,749,346.43
  5. Step 5: Solve for x
    x = 3,749,346.43/2,220.07
  6. Step 6: Final answer
    x = 1,688.84

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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.