Home / 3,137.62-4,328.50-2,018.34

Finding the Fourth Proportional to 3,137.62, 4,328.50 and 2,018.34

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Solution

The fourth proportional to 3,137.62, 4,328.50 and 2,018.34 is: 2,784.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.62 : 4,328.50 = 2,018.34 : x
  2. Step 2: Convert to fraction form
    3,137.62/4,328.50 = 2,018.34/x
  3. Step 3: Cross multiply
    3,137.62x = 4,328.50 × 2,018.34
  4. Step 4: Simplify right side
    3,137.62x = 8,736,384.69
  5. Step 5: Solve for x
    x = 8,736,384.69/3,137.62
  6. Step 6: Final answer
    x = 2,784.40

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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.