Home / 5,102.96-7,654.56-1,640.24

Finding the Fourth Proportional to 5,102.96, 7,654.56 and 1,640.24

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Solution

The fourth proportional to 5,102.96, 7,654.56 and 1,640.24 is: 2,460.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,102.96 : 7,654.56 = 1,640.24 : x
  2. Step 2: Convert to fraction form
    5,102.96/7,654.56 = 1,640.24/x
  3. Step 3: Cross multiply
    5,102.96x = 7,654.56 × 1,640.24
  4. Step 4: Simplify right side
    5,102.96x = 12,555,315.49
  5. Step 5: Solve for x
    x = 12,555,315.49/5,102.96
  6. Step 6: Final answer
    x = 2,460.40

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1.5x scale

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.