Home / 5,429.71-7,493.80-3,440.45

Finding the Fourth Proportional to 5,429.71, 7,493.80 and 3,440.45

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Solution

The fourth proportional to 5,429.71, 7,493.80 and 3,440.45 is: 4,748.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.71 : 7,493.80 = 3,440.45 : x
  2. Step 2: Convert to fraction form
    5,429.71/7,493.80 = 3,440.45/x
  3. Step 3: Cross multiply
    5,429.71x = 7,493.80 × 3,440.45
  4. Step 4: Simplify right side
    5,429.71x = 25,782,018.64
  5. Step 5: Solve for x
    x = 25,782,018.64/5,429.71
  6. Step 6: Final answer
    x = 4,748.33

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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.