Home / 2,528.74-3,787.98-1,430.79

Finding the Fourth Proportional to 2,528.74, 3,787.98 and 1,430.79

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Solution

The fourth proportional to 2,528.74, 3,787.98 and 1,430.79 is: 2,143.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.74 : 3,787.98 = 1,430.79 : x
  2. Step 2: Convert to fraction form
    2,528.74/3,787.98 = 1,430.79/x
  3. Step 3: Cross multiply
    2,528.74x = 3,787.98 × 1,430.79
  4. Step 4: Simplify right side
    2,528.74x = 5,419,803.90
  5. Step 5: Solve for x
    x = 5,419,803.90/2,528.74
  6. Step 6: Final answer
    x = 2,143.28

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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.