Home / 4,257.20-5,880.36-3,136.40

Finding the Fourth Proportional to 4,257.20, 5,880.36 and 3,136.40

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Solution

The fourth proportional to 4,257.20, 5,880.36 and 3,136.40 is: 4,332.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,257.20 : 5,880.36 = 3,136.40 : x
  2. Step 2: Convert to fraction form
    4,257.20/5,880.36 = 3,136.40/x
  3. Step 3: Cross multiply
    4,257.20x = 5,880.36 × 3,136.40
  4. Step 4: Simplify right side
    4,257.20x = 18,443,161.10
  5. Step 5: Solve for x
    x = 18,443,161.10/4,257.20
  6. Step 6: Final answer
    x = 4,332.23

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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.