Home / 3,040.55-4,195.95-1,643.30

Finding the Fourth Proportional to 3,040.55, 4,195.95 and 1,643.30

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Solution

The fourth proportional to 3,040.55, 4,195.95 and 1,643.30 is: 2,267.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,040.55 : 4,195.95 = 1,643.30 : x
  2. Step 2: Convert to fraction form
    3,040.55/4,195.95 = 1,643.30/x
  3. Step 3: Cross multiply
    3,040.55x = 4,195.95 × 1,643.30
  4. Step 4: Simplify right side
    3,040.55x = 6,895,204.64
  5. Step 5: Solve for x
    x = 6,895,204.64/3,040.55
  6. Step 6: Final answer
    x = 2,267.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.