Home / 3,412.28-4,705.72-3,157.74

Finding the Fourth Proportional to 3,412.28, 4,705.72 and 3,157.74

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Solution

The fourth proportional to 3,412.28, 4,705.72 and 3,157.74 is: 4,354.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.28 : 4,705.72 = 3,157.74 : x
  2. Step 2: Convert to fraction form
    3,412.28/4,705.72 = 3,157.74/x
  3. Step 3: Cross multiply
    3,412.28x = 4,705.72 × 3,157.74
  4. Step 4: Simplify right side
    3,412.28x = 14,859,440.27
  5. Step 5: Solve for x
    x = 14,859,440.27/3,412.28
  6. Step 6: Final answer
    x = 4,354.70

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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.