Home / 3,137.61-4,328.51-2,018.34

Finding the Fourth Proportional to 3,137.61, 4,328.51 and 2,018.34

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Solution

The fourth proportional to 3,137.61, 4,328.51 and 2,018.34 is: 2,784.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.61 : 4,328.51 = 2,018.34 : x
  2. Step 2: Convert to fraction form
    3,137.61/4,328.51 = 2,018.34/x
  3. Step 3: Cross multiply
    3,137.61x = 4,328.51 × 2,018.34
  4. Step 4: Simplify right side
    3,137.61x = 8,736,404.87
  5. Step 5: Solve for x
    x = 8,736,404.87/3,137.61
  6. Step 6: Final answer
    x = 2,784.41

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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.