Home / 3,457.42-5,188.30-1,815.14

Finding the Fourth Proportional to 3,457.42, 5,188.30 and 1,815.14

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Solution

The fourth proportional to 3,457.42, 5,188.30 and 1,815.14 is: 2,723.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.42 : 5,188.30 = 1,815.14 : x
  2. Step 2: Convert to fraction form
    3,457.42/5,188.30 = 1,815.14/x
  3. Step 3: Cross multiply
    3,457.42x = 5,188.30 × 1,815.14
  4. Step 4: Simplify right side
    3,457.42x = 9,417,490.86
  5. Step 5: Solve for x
    x = 9,417,490.86/3,457.42
  6. Step 6: Final answer
    x = 2,723.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.