Home / 2,030.20-2,800.26-1,243.66

Finding the Fourth Proportional to 2,030.20, 2,800.26 and 1,243.66

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Solution

The fourth proportional to 2,030.20, 2,800.26 and 1,243.66 is: 1,715.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,030.20 : 2,800.26 = 1,243.66 : x
  2. Step 2: Convert to fraction form
    2,030.20/2,800.26 = 1,243.66/x
  3. Step 3: Cross multiply
    2,030.20x = 2,800.26 × 1,243.66
  4. Step 4: Simplify right side
    2,030.20x = 3,482,571.35
  5. Step 5: Solve for x
    x = 3,482,571.35/2,030.20
  6. Step 6: Final answer
    x = 1,715.38

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1.5x scale

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.