Home / 2,626.36-3,624.38-1,578.40

Finding the Fourth Proportional to 2,626.36, 3,624.38 and 1,578.40

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Solution

The fourth proportional to 2,626.36, 3,624.38 and 1,578.40 is: 2,178.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,626.36 : 3,624.38 = 1,578.40 : x
  2. Step 2: Convert to fraction form
    2,626.36/3,624.38 = 1,578.40/x
  3. Step 3: Cross multiply
    2,626.36x = 3,624.38 × 1,578.40
  4. Step 4: Simplify right side
    2,626.36x = 5,720,721.39
  5. Step 5: Solve for x
    x = 5,720,721.39/2,626.36
  6. Step 6: Final answer
    x = 2,178.19

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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.