Home / 3,312.83-4,572.15-2,137.32

Finding the Fourth Proportional to 3,312.83, 4,572.15 and 2,137.32

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Solution

The fourth proportional to 3,312.83, 4,572.15 and 2,137.32 is: 2,949.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.83 : 4,572.15 = 2,137.32 : x
  2. Step 2: Convert to fraction form
    3,312.83/4,572.15 = 2,137.32/x
  3. Step 3: Cross multiply
    3,312.83x = 4,572.15 × 2,137.32
  4. Step 4: Simplify right side
    3,312.83x = 9,772,139.62
  5. Step 5: Solve for x
    x = 9,772,139.62/3,312.83
  6. Step 6: Final answer
    x = 2,949.78

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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.