Home / 3,919.40-5,411.32-2,594.90

Finding the Fourth Proportional to 3,919.40, 5,411.32 and 2,594.90

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Solution

The fourth proportional to 3,919.40, 5,411.32 and 2,594.90 is: 3,582.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.40 : 5,411.32 = 2,594.90 : x
  2. Step 2: Convert to fraction form
    3,919.40/5,411.32 = 2,594.90/x
  3. Step 3: Cross multiply
    3,919.40x = 5,411.32 × 2,594.90
  4. Step 4: Simplify right side
    3,919.40x = 14,041,834.27
  5. Step 5: Solve for x
    x = 14,041,834.27/3,919.40
  6. Step 6: Final answer
    x = 3,582.65

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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.