Home / 7,051.85-9,731.52-3,865.14

Finding the Fourth Proportional to 7,051.85, 9,731.52 and 3,865.14

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Solution

The fourth proportional to 7,051.85, 9,731.52 and 3,865.14 is: 5,333.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,051.85 : 9,731.52 = 3,865.14 : x
  2. Step 2: Convert to fraction form
    7,051.85/9,731.52 = 3,865.14/x
  3. Step 3: Cross multiply
    7,051.85x = 9,731.52 × 3,865.14
  4. Step 4: Simplify right side
    7,051.85x = 37,613,687.21
  5. Step 5: Solve for x
    x = 37,613,687.21/7,051.85
  6. Step 6: Final answer
    x = 5,333.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.