Home / 4,765.35-7,148.72-1,478.71

Finding the Fourth Proportional to 4,765.35, 7,148.72 and 1,478.71

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Solution

The fourth proportional to 4,765.35, 7,148.72 and 1,478.71 is: 2,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,765.35 : 7,148.72 = 1,478.71 : x
  2. Step 2: Convert to fraction form
    4,765.35/7,148.72 = 1,478.71/x
  3. Step 3: Cross multiply
    4,765.35x = 7,148.72 × 1,478.71
  4. Step 4: Simplify right side
    4,765.35x = 10,570,858.49
  5. Step 5: Solve for x
    x = 10,570,858.49/4,765.35
  6. Step 6: Final answer
    x = 2,218.28

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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.