Home / 1,625.42-2,428.40-1,349.30

Finding the Fourth Proportional to 1,625.42, 2,428.40 and 1,349.30

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Solution

The fourth proportional to 1,625.42, 2,428.40 and 1,349.30 is: 2,015.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.42 : 2,428.40 = 1,349.30 : x
  2. Step 2: Convert to fraction form
    1,625.42/2,428.40 = 1,349.30/x
  3. Step 3: Cross multiply
    1,625.42x = 2,428.40 × 1,349.30
  4. Step 4: Simplify right side
    1,625.42x = 3,276,640.12
  5. Step 5: Solve for x
    x = 3,276,640.12/1,625.42
  6. Step 6: Final answer
    x = 2,015.87

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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.