Home / 4,747.12-7,120.80-1,460.32

Finding the Fourth Proportional to 4,747.12, 7,120.80 and 1,460.32

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Solution

The fourth proportional to 4,747.12, 7,120.80 and 1,460.32 is: 2,190.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.12 : 7,120.80 = 1,460.32 : x
  2. Step 2: Convert to fraction form
    4,747.12/7,120.80 = 1,460.32/x
  3. Step 3: Cross multiply
    4,747.12x = 7,120.80 × 1,460.32
  4. Step 4: Simplify right side
    4,747.12x = 10,398,646.66
  5. Step 5: Solve for x
    x = 10,398,646.66/4,747.12
  6. Step 6: Final answer
    x = 2,190.52

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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.