Home / 3,457.92-5,186.31-1,898.70

Finding the Fourth Proportional to 3,457.92, 5,186.31 and 1,898.70

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Solution

The fourth proportional to 3,457.92, 5,186.31 and 1,898.70 is: 2,847.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.92 : 5,186.31 = 1,898.70 : x
  2. Step 2: Convert to fraction form
    3,457.92/5,186.31 = 1,898.70/x
  3. Step 3: Cross multiply
    3,457.92x = 5,186.31 × 1,898.70
  4. Step 4: Simplify right side
    3,457.92x = 9,847,246.80
  5. Step 5: Solve for x
    x = 9,847,246.80/3,457.92
  6. Step 6: Final answer
    x = 2,847.74

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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.