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Finding the Fourth Proportional to 3,703.52, 5,555.26 and 1,393.40

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Solution

The fourth proportional to 3,703.52, 5,555.26 and 1,393.40 is: 2,090.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,703.52 : 5,555.26 = 1,393.40 : x
  2. Step 2: Convert to fraction form
    3,703.52/5,555.26 = 1,393.40/x
  3. Step 3: Cross multiply
    3,703.52x = 5,555.26 × 1,393.40
  4. Step 4: Simplify right side
    3,703.52x = 7,740,699.28
  5. Step 5: Solve for x
    x = 7,740,699.28/3,703.52
  6. Step 6: Final answer
    x = 2,090.09

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Double scale
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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.