Home / 5,155.25-7,726.54-2,378.07

Finding the Fourth Proportional to 5,155.25, 7,726.54 and 2,378.07

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Solution

The fourth proportional to 5,155.25, 7,726.54 and 2,378.07 is: 3,564.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.25 : 7,726.54 = 2,378.07 : x
  2. Step 2: Convert to fraction form
    5,155.25/7,726.54 = 2,378.07/x
  3. Step 3: Cross multiply
    5,155.25x = 7,726.54 × 2,378.07
  4. Step 4: Simplify right side
    5,155.25x = 18,374,202.45
  5. Step 5: Solve for x
    x = 18,374,202.45/5,155.25
  6. Step 6: Final answer
    x = 3,564.17

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1.5x scale

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.