Home / 5,116.77-7,059.15-2,991.74

Finding the Fourth Proportional to 5,116.77, 7,059.15 and 2,991.74

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Solution

The fourth proportional to 5,116.77, 7,059.15 and 2,991.74 is: 4,127.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.77 : 7,059.15 = 2,991.74 : x
  2. Step 2: Convert to fraction form
    5,116.77/7,059.15 = 2,991.74/x
  3. Step 3: Cross multiply
    5,116.77x = 7,059.15 × 2,991.74
  4. Step 4: Simplify right side
    5,116.77x = 21,119,106.13
  5. Step 5: Solve for x
    x = 21,119,106.13/5,116.77
  6. Step 6: Final answer
    x = 4,127.43

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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.