Home / 3,445.85-5,135.62-3,440.39

Finding the Fourth Proportional to 3,445.85, 5,135.62 and 3,440.39

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Solution

The fourth proportional to 3,445.85, 5,135.62 and 3,440.39 is: 5,127.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,445.85 : 5,135.62 = 3,440.39 : x
  2. Step 2: Convert to fraction form
    3,445.85/5,135.62 = 3,440.39/x
  3. Step 3: Cross multiply
    3,445.85x = 5,135.62 × 3,440.39
  4. Step 4: Simplify right side
    3,445.85x = 17,668,501.41
  5. Step 5: Solve for x
    x = 17,668,501.41/3,445.85
  6. Step 6: Final answer
    x = 5,127.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.