Home / 2,403.81-3,317.36-1,355.88

Finding the Fourth Proportional to 2,403.81, 3,317.36 and 1,355.88

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Solution

The fourth proportional to 2,403.81, 3,317.36 and 1,355.88 is: 1,871.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.81 : 3,317.36 = 1,355.88 : x
  2. Step 2: Convert to fraction form
    2,403.81/3,317.36 = 1,355.88/x
  3. Step 3: Cross multiply
    2,403.81x = 3,317.36 × 1,355.88
  4. Step 4: Simplify right side
    2,403.81x = 4,497,928.88
  5. Step 5: Solve for x
    x = 4,497,928.88/2,403.81
  6. Step 6: Final answer
    x = 1,871.16

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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.