Home / 5,214.51-7,821.77-1,925.91

Finding the Fourth Proportional to 5,214.51, 7,821.77 and 1,925.91

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Solution

The fourth proportional to 5,214.51, 7,821.77 and 1,925.91 is: 2,888.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.51 : 7,821.77 = 1,925.91 : x
  2. Step 2: Convert to fraction form
    5,214.51/7,821.77 = 1,925.91/x
  3. Step 3: Cross multiply
    5,214.51x = 7,821.77 × 1,925.91
  4. Step 4: Simplify right side
    5,214.51x = 15,064,015.43
  5. Step 5: Solve for x
    x = 15,064,015.43/5,214.51
  6. Step 6: Final answer
    x = 2,888.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.