Home / 2,429.84-3,353.15-1,381.90

Finding the Fourth Proportional to 2,429.84, 3,353.15 and 1,381.90

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Solution

The fourth proportional to 2,429.84, 3,353.15 and 1,381.90 is: 1,907.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,429.84 : 3,353.15 = 1,381.90 : x
  2. Step 2: Convert to fraction form
    2,429.84/3,353.15 = 1,381.90/x
  3. Step 3: Cross multiply
    2,429.84x = 3,353.15 × 1,381.90
  4. Step 4: Simplify right side
    2,429.84x = 4,633,717.99
  5. Step 5: Solve for x
    x = 4,633,717.99/2,429.84
  6. Step 6: Final answer
    x = 1,907.01

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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.