Home / 5,404.09-7,457.65-2,920.09

Finding the Fourth Proportional to 5,404.09, 7,457.65 and 2,920.09

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Solution

The fourth proportional to 5,404.09, 7,457.65 and 2,920.09 is: 4,029.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,404.09 : 7,457.65 = 2,920.09 : x
  2. Step 2: Convert to fraction form
    5,404.09/7,457.65 = 2,920.09/x
  3. Step 3: Cross multiply
    5,404.09x = 7,457.65 × 2,920.09
  4. Step 4: Simplify right side
    5,404.09x = 21,777,009.19
  5. Step 5: Solve for x
    x = 21,777,009.19/5,404.09
  6. Step 6: Final answer
    x = 4,029.73

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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.