Home / 2,792.84-4,189.38-1,637.72

Finding the Fourth Proportional to 2,792.84, 4,189.38 and 1,637.72

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Solution

The fourth proportional to 2,792.84, 4,189.38 and 1,637.72 is: 2,456.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,792.84 : 4,189.38 = 1,637.72 : x
  2. Step 2: Convert to fraction form
    2,792.84/4,189.38 = 1,637.72/x
  3. Step 3: Cross multiply
    2,792.84x = 4,189.38 × 1,637.72
  4. Step 4: Simplify right side
    2,792.84x = 6,861,031.41
  5. Step 5: Solve for x
    x = 6,861,031.41/2,792.84
  6. Step 6: Final answer
    x = 2,456.65

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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.