Home / 3,140.54-4,718.15-2,963.21

Finding the Fourth Proportional to 3,140.54, 4,718.15 and 2,963.21

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Solution

The fourth proportional to 3,140.54, 4,718.15 and 2,963.21 is: 4,451.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.54 : 4,718.15 = 2,963.21 : x
  2. Step 2: Convert to fraction form
    3,140.54/4,718.15 = 2,963.21/x
  3. Step 3: Cross multiply
    3,140.54x = 4,718.15 × 2,963.21
  4. Step 4: Simplify right side
    3,140.54x = 13,980,830.85
  5. Step 5: Solve for x
    x = 13,980,830.85/3,140.54
  6. Step 6: Final answer
    x = 4,451.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.