Home / 4,741.14-7,111.77-1,278.39

Finding the Fourth Proportional to 4,741.14, 7,111.77 and 1,278.39

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Solution

The fourth proportional to 4,741.14, 7,111.77 and 1,278.39 is: 1,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,741.14 : 7,111.77 = 1,278.39 : x
  2. Step 2: Convert to fraction form
    4,741.14/7,111.77 = 1,278.39/x
  3. Step 3: Cross multiply
    4,741.14x = 7,111.77 × 1,278.39
  4. Step 4: Simplify right side
    4,741.14x = 9,091,615.65
  5. Step 5: Solve for x
    x = 9,091,615.65/4,741.14
  6. Step 6: Final answer
    x = 1,917.60

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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.