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Finding the Fourth Proportional to 1,303.93, 1,799.63 and 744.40

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Solution

The fourth proportional to 1,303.93, 1,799.63 and 744.40 is: 1,027.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303.93 : 1,799.63 = 744.40 : x
  2. Step 2: Convert to fraction form
    1,303.93/1,799.63 = 744.40/x
  3. Step 3: Cross multiply
    1,303.93x = 1,799.63 × 744.40
  4. Step 4: Simplify right side
    1,303.93x = 1,339,644.57
  5. Step 5: Solve for x
    x = 1,339,644.57/1,303.93
  6. Step 6: Final answer
    x = 1,027.39

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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.