Home / 3,116.02-4,305.81-2,069.50

Finding the Fourth Proportional to 3,116.02, 4,305.81 and 2,069.50

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Solution

The fourth proportional to 3,116.02, 4,305.81 and 2,069.50 is: 2,859.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.02 : 4,305.81 = 2,069.50 : x
  2. Step 2: Convert to fraction form
    3,116.02/4,305.81 = 2,069.50/x
  3. Step 3: Cross multiply
    3,116.02x = 4,305.81 × 2,069.50
  4. Step 4: Simplify right side
    3,116.02x = 8,910,873.80
  5. Step 5: Solve for x
    x = 8,910,873.80/3,116.02
  6. Step 6: Final answer
    x = 2,859.70

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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.