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Finding the Fourth Proportional to 1,336.85, 1,844.93 and 747.35

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Solution

The fourth proportional to 1,336.85, 1,844.93 and 747.35 is: 1,031.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.85 : 1,844.93 = 747.35 : x
  2. Step 2: Convert to fraction form
    1,336.85/1,844.93 = 747.35/x
  3. Step 3: Cross multiply
    1,336.85x = 1,844.93 × 747.35
  4. Step 4: Simplify right side
    1,336.85x = 1,378,801.08
  5. Step 5: Solve for x
    x = 1,378,801.08/1,336.85
  6. Step 6: Final answer
    x = 1,031.38

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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.