Home / 2,454.32-3,386.58-1,392.16

Finding the Fourth Proportional to 2,454.32, 3,386.58 and 1,392.16

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Solution

The fourth proportional to 2,454.32, 3,386.58 and 1,392.16 is: 1,920.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.32 : 3,386.58 = 1,392.16 : x
  2. Step 2: Convert to fraction form
    2,454.32/3,386.58 = 1,392.16/x
  3. Step 3: Cross multiply
    2,454.32x = 3,386.58 × 1,392.16
  4. Step 4: Simplify right side
    2,454.32x = 4,714,661.21
  5. Step 5: Solve for x
    x = 4,714,661.21/2,454.32
  6. Step 6: Final answer
    x = 1,920.96

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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.