Home / 5,516.28-7,612.74-3,421.08

Finding the Fourth Proportional to 5,516.28, 7,612.74 and 3,421.08

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Solution

The fourth proportional to 5,516.28, 7,612.74 and 3,421.08 is: 4,721.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,516.28 : 7,612.74 = 3,421.08 : x
  2. Step 2: Convert to fraction form
    5,516.28/7,612.74 = 3,421.08/x
  3. Step 3: Cross multiply
    5,516.28x = 7,612.74 × 3,421.08
  4. Step 4: Simplify right side
    5,516.28x = 26,043,792.56
  5. Step 5: Solve for x
    x = 26,043,792.56/5,516.28
  6. Step 6: Final answer
    x = 4,721.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.