Home / 2,048.60-3,072.90-1,929.80

Finding the Fourth Proportional to 2,048.60, 3,072.90 and 1,929.80

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Solution

The fourth proportional to 2,048.60, 3,072.90 and 1,929.80 is: 2,894.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,048.60 : 3,072.90 = 1,929.80 : x
  2. Step 2: Convert to fraction form
    2,048.60/3,072.90 = 1,929.80/x
  3. Step 3: Cross multiply
    2,048.60x = 3,072.90 × 1,929.80
  4. Step 4: Simplify right side
    2,048.60x = 5,930,082.42
  5. Step 5: Solve for x
    x = 5,930,082.42/2,048.60
  6. Step 6: Final answer
    x = 2,894.70

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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.