Home / 3,153.75-4,344.93-2,490.36

Finding the Fourth Proportional to 3,153.75, 4,344.93 and 2,490.36

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Solution

The fourth proportional to 3,153.75, 4,344.93 and 2,490.36 is: 3,430.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.75 : 4,344.93 = 2,490.36 : x
  2. Step 2: Convert to fraction form
    3,153.75/4,344.93 = 2,490.36/x
  3. Step 3: Cross multiply
    3,153.75x = 4,344.93 × 2,490.36
  4. Step 4: Simplify right side
    3,153.75x = 10,820,439.87
  5. Step 5: Solve for x
    x = 10,820,439.87/3,153.75
  6. Step 6: Final answer
    x = 3,430.98

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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.