Home / 4,743.81-7,115.72-1,281.06

Finding the Fourth Proportional to 4,743.81, 7,115.72 and 1,281.06

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Solution

The fourth proportional to 4,743.81, 7,115.72 and 1,281.06 is: 1,921.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,743.81 : 7,115.72 = 1,281.06 : x
  2. Step 2: Convert to fraction form
    4,743.81/7,115.72 = 1,281.06/x
  3. Step 3: Cross multiply
    4,743.81x = 7,115.72 × 1,281.06
  4. Step 4: Simplify right side
    4,743.81x = 9,115,682.05
  5. Step 5: Solve for x
    x = 9,115,682.05/4,743.81
  6. Step 6: Final answer
    x = 1,921.59

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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.