Home / 5,615.97-8,424.38-1,720.50

Finding the Fourth Proportional to 5,615.97, 8,424.38 and 1,720.50

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Solution

The fourth proportional to 5,615.97, 8,424.38 and 1,720.50 is: 2,580.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.97 : 8,424.38 = 1,720.50 : x
  2. Step 2: Convert to fraction form
    5,615.97/8,424.38 = 1,720.50/x
  3. Step 3: Cross multiply
    5,615.97x = 8,424.38 × 1,720.50
  4. Step 4: Simplify right side
    5,615.97x = 14,494,145.79
  5. Step 5: Solve for x
    x = 14,494,145.79/5,615.97
  6. Step 6: Final answer
    x = 2,580.88

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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.