Home / 3,819.74-5,730.28-1,970.35

Finding the Fourth Proportional to 3,819.74, 5,730.28 and 1,970.35

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Solution

The fourth proportional to 3,819.74, 5,730.28 and 1,970.35 is: 2,955.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.74 : 5,730.28 = 1,970.35 : x
  2. Step 2: Convert to fraction form
    3,819.74/5,730.28 = 1,970.35/x
  3. Step 3: Cross multiply
    3,819.74x = 5,730.28 × 1,970.35
  4. Step 4: Simplify right side
    3,819.74x = 11,290,637.95
  5. Step 5: Solve for x
    x = 11,290,637.95/3,819.74
  6. Step 6: Final answer
    x = 2,955.87

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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.