Home / 2,454.19-3,386.74-1,391.93

Finding the Fourth Proportional to 2,454.19, 3,386.74 and 1,391.93

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Solution

The fourth proportional to 2,454.19, 3,386.74 and 1,391.93 is: 1,920.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.19 : 3,386.74 = 1,391.93 : x
  2. Step 2: Convert to fraction form
    2,454.19/3,386.74 = 1,391.93/x
  3. Step 3: Cross multiply
    2,454.19x = 3,386.74 × 1,391.93
  4. Step 4: Simplify right side
    2,454.19x = 4,714,105.01
  5. Step 5: Solve for x
    x = 4,714,105.01/2,454.19
  6. Step 6: Final answer
    x = 1,920.84

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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.