Home / 4,674.32-7,012.72-1,387.44

Finding the Fourth Proportional to 4,674.32, 7,012.72 and 1,387.44

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Solution

The fourth proportional to 4,674.32, 7,012.72 and 1,387.44 is: 2,081.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,674.32 : 7,012.72 = 1,387.44 : x
  2. Step 2: Convert to fraction form
    4,674.32/7,012.72 = 1,387.44/x
  3. Step 3: Cross multiply
    4,674.32x = 7,012.72 × 1,387.44
  4. Step 4: Simplify right side
    4,674.32x = 9,729,728.24
  5. Step 5: Solve for x
    x = 9,729,728.24/4,674.32
  6. Step 6: Final answer
    x = 2,081.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.