Home / 4,674.45-7,011.46-1,387.47

Finding the Fourth Proportional to 4,674.45, 7,011.46 and 1,387.47

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Solution

The fourth proportional to 4,674.45, 7,011.46 and 1,387.47 is: 2,081.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,674.45 : 7,011.46 = 1,387.47 : x
  2. Step 2: Convert to fraction form
    4,674.45/7,011.46 = 1,387.47/x
  3. Step 3: Cross multiply
    4,674.45x = 7,011.46 × 1,387.47
  4. Step 4: Simplify right side
    4,674.45x = 9,728,190.41
  5. Step 5: Solve for x
    x = 9,728,190.41/4,674.45
  6. Step 6: Final answer
    x = 2,081.14

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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.