Home / 2,405.17-3,319.28-1,357.39

Finding the Fourth Proportional to 2,405.17, 3,319.28 and 1,357.39

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Solution

The fourth proportional to 2,405.17, 3,319.28 and 1,357.39 is: 1,873.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.17 : 3,319.28 = 1,357.39 : x
  2. Step 2: Convert to fraction form
    2,405.17/3,319.28 = 1,357.39/x
  3. Step 3: Cross multiply
    2,405.17x = 3,319.28 × 1,357.39
  4. Step 4: Simplify right side
    2,405.17x = 4,505,557.48
  5. Step 5: Solve for x
    x = 4,505,557.48/2,405.17
  6. Step 6: Final answer
    x = 1,873.28

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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.