Home / 3,420.84-5,135.51-2,387.41

Finding the Fourth Proportional to 3,420.84, 5,135.51 and 2,387.41

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Solution

The fourth proportional to 3,420.84, 5,135.51 and 2,387.41 is: 3,584.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.84 : 5,135.51 = 2,387.41 : x
  2. Step 2: Convert to fraction form
    3,420.84/5,135.51 = 2,387.41/x
  3. Step 3: Cross multiply
    3,420.84x = 5,135.51 × 2,387.41
  4. Step 4: Simplify right side
    3,420.84x = 12,260,555.99
  5. Step 5: Solve for x
    x = 12,260,555.99/3,420.84
  6. Step 6: Final answer
    x = 3,584.08

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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.