Home / 3,150.17-4,341.88-2,153.72

Finding the Fourth Proportional to 3,150.17, 4,341.88 and 2,153.72

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Solution

The fourth proportional to 3,150.17, 4,341.88 and 2,153.72 is: 2,968.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.17 : 4,341.88 = 2,153.72 : x
  2. Step 2: Convert to fraction form
    3,150.17/4,341.88 = 2,153.72/x
  3. Step 3: Cross multiply
    3,150.17x = 4,341.88 × 2,153.72
  4. Step 4: Simplify right side
    3,150.17x = 9,351,166.70
  5. Step 5: Solve for x
    x = 9,351,166.70/3,150.17
  6. Step 6: Final answer
    x = 2,968.47

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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.