Home / 3,079.80-4,621.25-1,436.49

Finding the Fourth Proportional to 3,079.80, 4,621.25 and 1,436.49

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Solution

The fourth proportional to 3,079.80, 4,621.25 and 1,436.49 is: 2,155.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.80 : 4,621.25 = 1,436.49 : x
  2. Step 2: Convert to fraction form
    3,079.80/4,621.25 = 1,436.49/x
  3. Step 3: Cross multiply
    3,079.80x = 4,621.25 × 1,436.49
  4. Step 4: Simplify right side
    3,079.80x = 6,638,372.23
  5. Step 5: Solve for x
    x = 6,638,372.23/3,079.80
  6. Step 6: Final answer
    x = 2,155.46

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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.