Home / 5,550.40-7,643.96-5,429.44

Finding the Fourth Proportional to 5,550.40, 7,643.96 and 5,429.44

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Solution

The fourth proportional to 5,550.40, 7,643.96 and 5,429.44 is: 7,477.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,550.40 : 7,643.96 = 5,429.44 : x
  2. Step 2: Convert to fraction form
    5,550.40/7,643.96 = 5,429.44/x
  3. Step 3: Cross multiply
    5,550.40x = 7,643.96 × 5,429.44
  4. Step 4: Simplify right side
    5,550.40x = 41,502,422.18
  5. Step 5: Solve for x
    x = 41,502,422.18/5,550.40
  6. Step 6: Final answer
    x = 7,477.37

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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.