Home / 1,434.84-2,135.46-1,426.20

Finding the Fourth Proportional to 1,434.84, 2,135.46 and 1,426.20

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Solution

The fourth proportional to 1,434.84, 2,135.46 and 1,426.20 is: 2,122.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434.84 : 2,135.46 = 1,426.20 : x
  2. Step 2: Convert to fraction form
    1,434.84/2,135.46 = 1,426.20/x
  3. Step 3: Cross multiply
    1,434.84x = 2,135.46 × 1,426.20
  4. Step 4: Simplify right side
    1,434.84x = 3,045,593.05
  5. Step 5: Solve for x
    x = 3,045,593.05/1,434.84
  6. Step 6: Final answer
    x = 2,122.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.