Home / 5,421.47-7,472.66-3,628.33

Finding the Fourth Proportional to 5,421.47, 7,472.66 and 3,628.33

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Solution

The fourth proportional to 5,421.47, 7,472.66 and 3,628.33 is: 5,001.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.47 : 7,472.66 = 3,628.33 : x
  2. Step 2: Convert to fraction form
    5,421.47/7,472.66 = 3,628.33/x
  3. Step 3: Cross multiply
    5,421.47x = 7,472.66 × 3,628.33
  4. Step 4: Simplify right side
    5,421.47x = 27,113,239.63
  5. Step 5: Solve for x
    x = 27,113,239.63/5,421.47
  6. Step 6: Final answer
    x = 5,001.09

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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.