Home / 3,143.62-4,328.34-2,670.58

Finding the Fourth Proportional to 3,143.62, 4,328.34 and 2,670.58

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Solution

The fourth proportional to 3,143.62, 4,328.34 and 2,670.58 is: 3,677.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.62 : 4,328.34 = 2,670.58 : x
  2. Step 2: Convert to fraction form
    3,143.62/4,328.34 = 2,670.58/x
  3. Step 3: Cross multiply
    3,143.62x = 4,328.34 × 2,670.58
  4. Step 4: Simplify right side
    3,143.62x = 11,559,178.24
  5. Step 5: Solve for x
    x = 11,559,178.24/3,143.62
  6. Step 6: Final answer
    x = 3,677.03

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1.5x scale

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.