Home / 7,051.75-9,731.65-3,865.05

Finding the Fourth Proportional to 7,051.75, 9,731.65 and 3,865.05

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Solution

The fourth proportional to 7,051.75, 9,731.65 and 3,865.05 is: 5,333.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,051.75 : 9,731.65 = 3,865.05 : x
  2. Step 2: Convert to fraction form
    7,051.75/9,731.65 = 3,865.05/x
  3. Step 3: Cross multiply
    7,051.75x = 9,731.65 × 3,865.05
  4. Step 4: Simplify right side
    7,051.75x = 37,613,313.83
  5. Step 5: Solve for x
    x = 37,613,313.83/7,051.75
  6. Step 6: Final answer
    x = 5,333.90

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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.