Home / 2,477.11-3,418.41-1,358.05

Finding the Fourth Proportional to 2,477.11, 3,418.41 and 1,358.05

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Solution

The fourth proportional to 2,477.11, 3,418.41 and 1,358.05 is: 1,874.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477.11 : 3,418.41 = 1,358.05 : x
  2. Step 2: Convert to fraction form
    2,477.11/3,418.41 = 1,358.05/x
  3. Step 3: Cross multiply
    2,477.11x = 3,418.41 × 1,358.05
  4. Step 4: Simplify right side
    2,477.11x = 4,642,371.70
  5. Step 5: Solve for x
    x = 4,642,371.70/2,477.11
  6. Step 6: Final answer
    x = 1,874.11

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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.