Home / 5,403.81-7,457.26-2,919.81

Finding the Fourth Proportional to 5,403.81, 7,457.26 and 2,919.81

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Solution

The fourth proportional to 5,403.81, 7,457.26 and 2,919.81 is: 4,029.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.81 : 7,457.26 = 2,919.81 : x
  2. Step 2: Convert to fraction form
    5,403.81/7,457.26 = 2,919.81/x
  3. Step 3: Cross multiply
    5,403.81x = 7,457.26 × 2,919.81
  4. Step 4: Simplify right side
    5,403.81x = 21,773,782.32
  5. Step 5: Solve for x
    x = 21,773,782.32/5,403.81
  6. Step 6: Final answer
    x = 4,029.34

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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.