Home / 2,929.50-4,041.50-1,920.85

Finding the Fourth Proportional to 2,929.50, 4,041.50 and 1,920.85

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Solution

The fourth proportional to 2,929.50, 4,041.50 and 1,920.85 is: 2,649.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.50 : 4,041.50 = 1,920.85 : x
  2. Step 2: Convert to fraction form
    2,929.50/4,041.50 = 1,920.85/x
  3. Step 3: Cross multiply
    2,929.50x = 4,041.50 × 1,920.85
  4. Step 4: Simplify right side
    2,929.50x = 7,763,095.57
  5. Step 5: Solve for x
    x = 7,763,095.57/2,929.50
  6. Step 6: Final answer
    x = 2,649.97

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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.