Home / 3,231.52-4,457.70-1,905.05

Finding the Fourth Proportional to 3,231.52, 4,457.70 and 1,905.05

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Solution

The fourth proportional to 3,231.52, 4,457.70 and 1,905.05 is: 2,627.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.52 : 4,457.70 = 1,905.05 : x
  2. Step 2: Convert to fraction form
    3,231.52/4,457.70 = 1,905.05/x
  3. Step 3: Cross multiply
    3,231.52x = 4,457.70 × 1,905.05
  4. Step 4: Simplify right side
    3,231.52x = 8,492,152.53
  5. Step 5: Solve for x
    x = 8,492,152.53/3,231.52
  6. Step 6: Final answer
    x = 2,627.91

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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.