Home / 2,029.70-2,800.97-1,098.20

Finding the Fourth Proportional to 2,029.70, 2,800.97 and 1,098.20

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Solution

The fourth proportional to 2,029.70, 2,800.97 and 1,098.20 is: 1,515.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,029.70 : 2,800.97 = 1,098.20 : x
  2. Step 2: Convert to fraction form
    2,029.70/2,800.97 = 1,098.20/x
  3. Step 3: Cross multiply
    2,029.70x = 2,800.97 × 1,098.20
  4. Step 4: Simplify right side
    2,029.70x = 3,076,005.76
  5. Step 5: Solve for x
    x = 3,076,005.76/2,029.70
  6. Step 6: Final answer
    x = 1,515.50

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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.