Home / 3,686.75-5,530.14-1,054.25

Finding the Fourth Proportional to 3,686.75, 5,530.14 and 1,054.25

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Solution

The fourth proportional to 3,686.75, 5,530.14 and 1,054.25 is: 1,581.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.75 : 5,530.14 = 1,054.25 : x
  2. Step 2: Convert to fraction form
    3,686.75/5,530.14 = 1,054.25/x
  3. Step 3: Cross multiply
    3,686.75x = 5,530.14 × 1,054.25
  4. Step 4: Simplify right side
    3,686.75x = 5,830,143.18
  5. Step 5: Solve for x
    x = 5,830,143.18/3,686.75
  6. Step 6: Final answer
    x = 1,581.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.