Home / 3,145.55-4,713.69-1,583.40

Finding the Fourth Proportional to 3,145.55, 4,713.69 and 1,583.40

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Solution

The fourth proportional to 3,145.55, 4,713.69 and 1,583.40 is: 2,372.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.55 : 4,713.69 = 1,583.40 : x
  2. Step 2: Convert to fraction form
    3,145.55/4,713.69 = 1,583.40/x
  3. Step 3: Cross multiply
    3,145.55x = 4,713.69 × 1,583.40
  4. Step 4: Simplify right side
    3,145.55x = 7,463,656.75
  5. Step 5: Solve for x
    x = 7,463,656.75/3,145.55
  6. Step 6: Final answer
    x = 2,372.77

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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.