Home / 4,743.56-7,115.34-1,280.81

Finding the Fourth Proportional to 4,743.56, 7,115.34 and 1,280.81

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Solution

The fourth proportional to 4,743.56, 7,115.34 and 1,280.81 is: 1,921.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,743.56 : 7,115.34 = 1,280.81 : x
  2. Step 2: Convert to fraction form
    4,743.56/7,115.34 = 1,280.81/x
  3. Step 3: Cross multiply
    4,743.56x = 7,115.34 × 1,280.81
  4. Step 4: Simplify right side
    4,743.56x = 9,113,421.22
  5. Step 5: Solve for x
    x = 9,113,421.22/4,743.56
  6. Step 6: Final answer
    x = 1,921.22

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Similar ratio
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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.