Home / 5,116.92-7,059.35-2,878.29

Finding the Fourth Proportional to 5,116.92, 7,059.35 and 2,878.29

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Solution

The fourth proportional to 5,116.92, 7,059.35 and 2,878.29 is: 3,970.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.92 : 7,059.35 = 2,878.29 : x
  2. Step 2: Convert to fraction form
    5,116.92/7,059.35 = 2,878.29/x
  3. Step 3: Cross multiply
    5,116.92x = 7,059.35 × 2,878.29
  4. Step 4: Simplify right side
    5,116.92x = 20,318,856.51
  5. Step 5: Solve for x
    x = 20,318,856.51/5,116.92
  6. Step 6: Final answer
    x = 3,970.92

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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.