Home / 3,578.15-5,366.60-945.68

Finding the Fourth Proportional to 3,578.15, 5,366.60 and 945.68

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Solution

The fourth proportional to 3,578.15, 5,366.60 and 945.68 is: 1,418.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.15 : 5,366.60 = 945.68 : x
  2. Step 2: Convert to fraction form
    3,578.15/5,366.60 = 945.68/x
  3. Step 3: Cross multiply
    3,578.15x = 5,366.60 × 945.68
  4. Step 4: Simplify right side
    3,578.15x = 5,075,068.14
  5. Step 5: Solve for x
    x = 5,075,068.14/3,578.15
  6. Step 6: Final answer
    x = 1,418.35

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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.