Home / 2,457.77-3,394.17-2,120.94

Finding the Fourth Proportional to 2,457.77, 3,394.17 and 2,120.94

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Solution

The fourth proportional to 2,457.77, 3,394.17 and 2,120.94 is: 2,929.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.77 : 3,394.17 = 2,120.94 : x
  2. Step 2: Convert to fraction form
    2,457.77/3,394.17 = 2,120.94/x
  3. Step 3: Cross multiply
    2,457.77x = 3,394.17 × 2,120.94
  4. Step 4: Simplify right side
    2,457.77x = 7,198,830.92
  5. Step 5: Solve for x
    x = 7,198,830.92/2,457.77
  6. Step 6: Final answer
    x = 2,929.02

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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.