Home / 3,856.30-5,321.73-2,970.52

Finding the Fourth Proportional to 3,856.30, 5,321.73 and 2,970.52

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Solution

The fourth proportional to 3,856.30, 5,321.73 and 2,970.52 is: 4,099.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.30 : 5,321.73 = 2,970.52 : x
  2. Step 2: Convert to fraction form
    3,856.30/5,321.73 = 2,970.52/x
  3. Step 3: Cross multiply
    3,856.30x = 5,321.73 × 2,970.52
  4. Step 4: Simplify right side
    3,856.30x = 15,808,305.40
  5. Step 5: Solve for x
    x = 15,808,305.40/3,856.30
  6. Step 6: Final answer
    x = 4,099.35

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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.