Home / 2,205.07-3,041.95-1,320.70

Finding the Fourth Proportional to 2,205.07, 3,041.95 and 1,320.70

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Solution

The fourth proportional to 2,205.07, 3,041.95 and 1,320.70 is: 1,821.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.07 : 3,041.95 = 1,320.70 : x
  2. Step 2: Convert to fraction form
    2,205.07/3,041.95 = 1,320.70/x
  3. Step 3: Cross multiply
    2,205.07x = 3,041.95 × 1,320.70
  4. Step 4: Simplify right side
    2,205.07x = 4,017,503.37
  5. Step 5: Solve for x
    x = 4,017,503.37/2,205.07
  6. Step 6: Final answer
    x = 1,821.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.