Home / 5,555.63-7,666.94-3,431.09

Finding the Fourth Proportional to 5,555.63, 7,666.94 and 3,431.09

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Solution

The fourth proportional to 5,555.63, 7,666.94 and 3,431.09 is: 4,735.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,555.63 : 7,666.94 = 3,431.09 : x
  2. Step 2: Convert to fraction form
    5,555.63/7,666.94 = 3,431.09/x
  3. Step 3: Cross multiply
    5,555.63x = 7,666.94 × 3,431.09
  4. Step 4: Simplify right side
    5,555.63x = 26,305,988.91
  5. Step 5: Solve for x
    x = 26,305,988.91/5,555.63
  6. Step 6: Final answer
    x = 4,735.01

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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.