Home / 2,929.47-4,393.40-2,100.84

Finding the Fourth Proportional to 2,929.47, 4,393.40 and 2,100.84

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Solution

The fourth proportional to 2,929.47, 4,393.40 and 2,100.84 is: 3,150.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.47 : 4,393.40 = 2,100.84 : x
  2. Step 2: Convert to fraction form
    2,929.47/4,393.40 = 2,100.84/x
  3. Step 3: Cross multiply
    2,929.47x = 4,393.40 × 2,100.84
  4. Step 4: Simplify right side
    2,929.47x = 9,229,819.95
  5. Step 5: Solve for x
    x = 9,229,819.95/2,929.47
  6. Step 6: Final answer
    x = 3,150.68

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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.