Home / 3,411.32-4,707.56-1,919.23

Finding the Fourth Proportional to 3,411.32, 4,707.56 and 1,919.23

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Solution

The fourth proportional to 3,411.32, 4,707.56 and 1,919.23 is: 2,648.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,411.32 : 4,707.56 = 1,919.23 : x
  2. Step 2: Convert to fraction form
    3,411.32/4,707.56 = 1,919.23/x
  3. Step 3: Cross multiply
    3,411.32x = 4,707.56 × 1,919.23
  4. Step 4: Simplify right side
    3,411.32x = 9,034,883.41
  5. Step 5: Solve for x
    x = 9,034,883.41/3,411.32
  6. Step 6: Final answer
    x = 2,648.50

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Double scale
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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.