Home / 5,445.85-7,516.04-3,938.31

Finding the Fourth Proportional to 5,445.85, 7,516.04 and 3,938.31

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Solution

The fourth proportional to 5,445.85, 7,516.04 and 3,938.31 is: 5,435.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.85 : 7,516.04 = 3,938.31 : x
  2. Step 2: Convert to fraction form
    5,445.85/7,516.04 = 3,938.31/x
  3. Step 3: Cross multiply
    5,445.85x = 7,516.04 × 3,938.31
  4. Step 4: Simplify right side
    5,445.85x = 29,600,495.49
  5. Step 5: Solve for x
    x = 29,600,495.49/5,445.85
  6. Step 6: Final answer
    x = 5,435.42

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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.