Home / 4,140.30-5,710.55-3,004.35

Finding the Fourth Proportional to 4,140.30, 5,710.55 and 3,004.35

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Solution

The fourth proportional to 4,140.30, 5,710.55 and 3,004.35 is: 4,143.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.30 : 5,710.55 = 3,004.35 : x
  2. Step 2: Convert to fraction form
    4,140.30/5,710.55 = 3,004.35/x
  3. Step 3: Cross multiply
    4,140.30x = 5,710.55 × 3,004.35
  4. Step 4: Simplify right side
    4,140.30x = 17,156,475.87
  5. Step 5: Solve for x
    x = 17,156,475.87/4,140.30
  6. Step 6: Final answer
    x = 4,143.78

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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.