Home / 3,154.84-4,351.53-2,490.64

Finding the Fourth Proportional to 3,154.84, 4,351.53 and 2,490.64

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Solution

The fourth proportional to 3,154.84, 4,351.53 and 2,490.64 is: 3,435.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,154.84 : 4,351.53 = 2,490.64 : x
  2. Step 2: Convert to fraction form
    3,154.84/4,351.53 = 2,490.64/x
  3. Step 3: Cross multiply
    3,154.84x = 4,351.53 × 2,490.64
  4. Step 4: Simplify right side
    3,154.84x = 10,838,094.68
  5. Step 5: Solve for x
    x = 10,838,094.68/3,154.84
  6. Step 6: Final answer
    x = 3,435.39

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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.