Home / 4,642.80-6,406.56-3,024.78

Finding the Fourth Proportional to 4,642.80, 6,406.56 and 3,024.78

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Solution

The fourth proportional to 4,642.80, 6,406.56 and 3,024.78 is: 4,173.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,642.80 : 6,406.56 = 3,024.78 : x
  2. Step 2: Convert to fraction form
    4,642.80/6,406.56 = 3,024.78/x
  3. Step 3: Cross multiply
    4,642.80x = 6,406.56 × 3,024.78
  4. Step 4: Simplify right side
    4,642.80x = 19,378,434.56
  5. Step 5: Solve for x
    x = 19,378,434.56/4,642.80
  6. Step 6: Final answer
    x = 4,173.87

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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.