Home / 1,626.88-2,246.12-1,129.36

Finding the Fourth Proportional to 1,626.88, 2,246.12 and 1,129.36

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Solution

The fourth proportional to 1,626.88, 2,246.12 and 1,129.36 is: 1,559.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626.88 : 2,246.12 = 1,129.36 : x
  2. Step 2: Convert to fraction form
    1,626.88/2,246.12 = 1,129.36/x
  3. Step 3: Cross multiply
    1,626.88x = 2,246.12 × 1,129.36
  4. Step 4: Simplify right side
    1,626.88x = 2,536,678.08
  5. Step 5: Solve for x
    x = 2,536,678.08/1,626.88
  6. Step 6: Final answer
    x = 1,559.23

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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.