Home / 5,461.30-7,530.64-3,689.83

Finding the Fourth Proportional to 5,461.30, 7,530.64 and 3,689.83

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Solution

The fourth proportional to 5,461.30, 7,530.64 and 3,689.83 is: 5,087.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,461.30 : 7,530.64 = 3,689.83 : x
  2. Step 2: Convert to fraction form
    5,461.30/7,530.64 = 3,689.83/x
  3. Step 3: Cross multiply
    5,461.30x = 7,530.64 × 3,689.83
  4. Step 4: Simplify right side
    5,461.30x = 27,786,781.39
  5. Step 5: Solve for x
    x = 27,786,781.39/5,461.30
  6. Step 6: Final answer
    x = 5,087.94

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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.