Home / 5,178.18-7,097.50-4,991.14

Finding the Fourth Proportional to 5,178.18, 7,097.50 and 4,991.14

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Solution

The fourth proportional to 5,178.18, 7,097.50 and 4,991.14 is: 6,841.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.18 : 7,097.50 = 4,991.14 : x
  2. Step 2: Convert to fraction form
    5,178.18/7,097.50 = 4,991.14/x
  3. Step 3: Cross multiply
    5,178.18x = 7,097.50 × 4,991.14
  4. Step 4: Simplify right side
    5,178.18x = 35,424,637.18
  5. Step 5: Solve for x
    x = 35,424,637.18/5,178.18
  6. Step 6: Final answer
    x = 6,841.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.