Home / 3,445.49-5,168.15-1,105.40

Finding the Fourth Proportional to 3,445.49, 5,168.15 and 1,105.40

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Solution

The fourth proportional to 3,445.49, 5,168.15 and 1,105.40 is: 1,658.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,445.49 : 5,168.15 = 1,105.40 : x
  2. Step 2: Convert to fraction form
    3,445.49/5,168.15 = 1,105.40/x
  3. Step 3: Cross multiply
    3,445.49x = 5,168.15 × 1,105.40
  4. Step 4: Simplify right side
    3,445.49x = 5,712,841.64
  5. Step 5: Solve for x
    x = 5,712,841.64/3,445.49
  6. Step 6: Final answer
    x = 1,658.07

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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.