Home / 1,905.10-2,626.05-1,314.70

Finding the Fourth Proportional to 1,905.10, 2,626.05 and 1,314.70

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Solution

The fourth proportional to 1,905.10, 2,626.05 and 1,314.70 is: 1,812.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.10 : 2,626.05 = 1,314.70 : x
  2. Step 2: Convert to fraction form
    1,905.10/2,626.05 = 1,314.70/x
  3. Step 3: Cross multiply
    1,905.10x = 2,626.05 × 1,314.70
  4. Step 4: Simplify right side
    1,905.10x = 3,452,467.94
  5. Step 5: Solve for x
    x = 3,452,467.94/1,905.10
  6. Step 6: Final answer
    x = 1,812.22

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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.