Home / 6,975.02-9,621.50-4,178.90

Finding the Fourth Proportional to 6,975.02, 9,621.50 and 4,178.90

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Solution

The fourth proportional to 6,975.02, 9,621.50 and 4,178.90 is: 5,764.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,975.02 : 9,621.50 = 4,178.90 : x
  2. Step 2: Convert to fraction form
    6,975.02/9,621.50 = 4,178.90/x
  3. Step 3: Cross multiply
    6,975.02x = 9,621.50 × 4,178.90
  4. Step 4: Simplify right side
    6,975.02x = 40,207,286.35
  5. Step 5: Solve for x
    x = 40,207,286.35/6,975.02
  6. Step 6: Final answer
    x = 5,764.47

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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.