Home / 5,610.49-7,686.40-5,400.29

Finding the Fourth Proportional to 5,610.49, 7,686.40 and 5,400.29

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Solution

The fourth proportional to 5,610.49, 7,686.40 and 5,400.29 is: 7,398.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,610.49 : 7,686.40 = 5,400.29 : x
  2. Step 2: Convert to fraction form
    5,610.49/7,686.40 = 5,400.29/x
  3. Step 3: Cross multiply
    5,610.49x = 7,686.40 × 5,400.29
  4. Step 4: Simplify right side
    5,610.49x = 41,508,762.05
  5. Step 5: Solve for x
    x = 41,508,762.05/5,610.49
  6. Step 6: Final answer
    x = 7,398.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.