Home / 3,078.49-4,617.74-1,436.19

Finding the Fourth Proportional to 3,078.49, 4,617.74 and 1,436.19

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Solution

The fourth proportional to 3,078.49, 4,617.74 and 1,436.19 is: 2,154.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.49 : 4,617.74 = 1,436.19 : x
  2. Step 2: Convert to fraction form
    3,078.49/4,617.74 = 1,436.19/x
  3. Step 3: Cross multiply
    3,078.49x = 4,617.74 × 1,436.19
  4. Step 4: Simplify right side
    3,078.49x = 6,631,921.74
  5. Step 5: Solve for x
    x = 6,631,921.74/3,078.49
  6. Step 6: Final answer
    x = 2,154.28

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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.