Home / 3,230.64-4,457.46-1,971.61

Finding the Fourth Proportional to 3,230.64, 4,457.46 and 1,971.61

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Solution

The fourth proportional to 3,230.64, 4,457.46 and 1,971.61 is: 2,720.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.64 : 4,457.46 = 1,971.61 : x
  2. Step 2: Convert to fraction form
    3,230.64/4,457.46 = 1,971.61/x
  3. Step 3: Cross multiply
    3,230.64x = 4,457.46 × 1,971.61
  4. Step 4: Simplify right side
    3,230.64x = 8,788,372.71
  5. Step 5: Solve for x
    x = 8,788,372.71/3,230.64
  6. Step 6: Final answer
    x = 2,720.32

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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.