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Finding the Fourth Proportional to 2,393.78, 3,303.47 and 1,449.39

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Solution

The fourth proportional to 2,393.78, 3,303.47 and 1,449.39 is: 2,000.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,393.78 : 3,303.47 = 1,449.39 : x
  2. Step 2: Convert to fraction form
    2,393.78/3,303.47 = 1,449.39/x
  3. Step 3: Cross multiply
    2,393.78x = 3,303.47 × 1,449.39
  4. Step 4: Simplify right side
    2,393.78x = 4,788,032.39
  5. Step 5: Solve for x
    x = 4,788,032.39/2,393.78
  6. Step 6: Final answer
    x = 2,000.20

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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.