Home / 3,145.26-4,720.32-1,586.82

Finding the Fourth Proportional to 3,145.26, 4,720.32 and 1,586.82

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Solution

The fourth proportional to 3,145.26, 4,720.32 and 1,586.82 is: 2,381.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.26 : 4,720.32 = 1,586.82 : x
  2. Step 2: Convert to fraction form
    3,145.26/4,720.32 = 1,586.82/x
  3. Step 3: Cross multiply
    3,145.26x = 4,720.32 × 1,586.82
  4. Step 4: Simplify right side
    3,145.26x = 7,490,298.18
  5. Step 5: Solve for x
    x = 7,490,298.18/3,145.26
  6. Step 6: Final answer
    x = 2,381.46

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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.