Home / 3,145.60-4,718.44-1,607.68

Finding the Fourth Proportional to 3,145.60, 4,718.44 and 1,607.68

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Solution

The fourth proportional to 3,145.60, 4,718.44 and 1,607.68 is: 2,411.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.60 : 4,718.44 = 1,607.68 : x
  2. Step 2: Convert to fraction form
    3,145.60/4,718.44 = 1,607.68/x
  3. Step 3: Cross multiply
    3,145.60x = 4,718.44 × 1,607.68
  4. Step 4: Simplify right side
    3,145.60x = 7,585,741.62
  5. Step 5: Solve for x
    x = 7,585,741.62/3,145.60
  6. Step 6: Final answer
    x = 2,411.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.