Home / 2,407.19-3,321.37-1,358.87

Finding the Fourth Proportional to 2,407.19, 3,321.37 and 1,358.87

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Solution

The fourth proportional to 2,407.19, 3,321.37 and 1,358.87 is: 1,874.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,407.19 : 3,321.37 = 1,358.87 : x
  2. Step 2: Convert to fraction form
    2,407.19/3,321.37 = 1,358.87/x
  3. Step 3: Cross multiply
    2,407.19x = 3,321.37 × 1,358.87
  4. Step 4: Simplify right side
    2,407.19x = 4,513,310.05
  5. Step 5: Solve for x
    x = 4,513,310.05/2,407.19
  6. Step 6: Final answer
    x = 1,874.93

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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.