Home / 1,643.62-2,267.15-1,106.17

Finding the Fourth Proportional to 1,643.62, 2,267.15 and 1,106.17

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Solution

The fourth proportional to 1,643.62, 2,267.15 and 1,106.17 is: 1,525.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.62 : 2,267.15 = 1,106.17 : x
  2. Step 2: Convert to fraction form
    1,643.62/2,267.15 = 1,106.17/x
  3. Step 3: Cross multiply
    1,643.62x = 2,267.15 × 1,106.17
  4. Step 4: Simplify right side
    1,643.62x = 2,507,853.32
  5. Step 5: Solve for x
    x = 2,507,853.32/1,643.62
  6. Step 6: Final answer
    x = 1,525.81

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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.