Home / 3,174.34-4,381.52-2,113.64

Finding the Fourth Proportional to 3,174.34, 4,381.52 and 2,113.64

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Solution

The fourth proportional to 3,174.34, 4,381.52 and 2,113.64 is: 2,917.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.34 : 4,381.52 = 2,113.64 : x
  2. Step 2: Convert to fraction form
    3,174.34/4,381.52 = 2,113.64/x
  3. Step 3: Cross multiply
    3,174.34x = 4,381.52 × 2,113.64
  4. Step 4: Simplify right side
    3,174.34x = 9,260,970.48
  5. Step 5: Solve for x
    x = 9,260,970.48/3,174.34
  6. Step 6: Final answer
    x = 2,917.45

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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.