Home / 3,416.72-5,126.64-1,685.12

Finding the Fourth Proportional to 3,416.72, 5,126.64 and 1,685.12

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Solution

The fourth proportional to 3,416.72, 5,126.64 and 1,685.12 is: 2,528.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.72 : 5,126.64 = 1,685.12 : x
  2. Step 2: Convert to fraction form
    3,416.72/5,126.64 = 1,685.12/x
  3. Step 3: Cross multiply
    3,416.72x = 5,126.64 × 1,685.12
  4. Step 4: Simplify right side
    3,416.72x = 8,639,003.60
  5. Step 5: Solve for x
    x = 8,639,003.60/3,416.72
  6. Step 6: Final answer
    x = 2,528.45

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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.