Home / 5,068.20-6,991.70-3,178.84

Finding the Fourth Proportional to 5,068.20, 6,991.70 and 3,178.84

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Solution

The fourth proportional to 5,068.20, 6,991.70 and 3,178.84 is: 4,385.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,068.20 : 6,991.70 = 3,178.84 : x
  2. Step 2: Convert to fraction form
    5,068.20/6,991.70 = 3,178.84/x
  3. Step 3: Cross multiply
    5,068.20x = 6,991.70 × 3,178.84
  4. Step 4: Simplify right side
    5,068.20x = 22,225,495.63
  5. Step 5: Solve for x
    x = 22,225,495.63/5,068.20
  6. Step 6: Final answer
    x = 4,385.28

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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.