Home / 2,431.20-3,355.00-1,487

Finding the Fourth Proportional to 2,431.20, 3,355.00 and 1,487

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Solution

The fourth proportional to 2,431.20, 3,355.00 and 1,487 is: 2,052.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.20 : 3,355.00 = 1,487 : x
  2. Step 2: Convert to fraction form
    2,431.20/3,355.00 = 1,487/x
  3. Step 3: Cross multiply
    2,431.20x = 3,355.00 × 1,487
  4. Step 4: Simplify right side
    2,431.20x = 4,988,888.72
  5. Step 5: Solve for x
    x = 4,988,888.72/2,431.20
  6. Step 6: Final answer
    x = 2,052.03

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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.