Home / 5,515.29-7,606.31-4,387.77

Finding the Fourth Proportional to 5,515.29, 7,606.31 and 4,387.77

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Solution

The fourth proportional to 5,515.29, 7,606.31 and 4,387.77 is: 6,051.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.29 : 7,606.31 = 4,387.77 : x
  2. Step 2: Convert to fraction form
    5,515.29/7,606.31 = 4,387.77/x
  3. Step 3: Cross multiply
    5,515.29x = 7,606.31 × 4,387.77
  4. Step 4: Simplify right side
    5,515.29x = 33,374,716.89
  5. Step 5: Solve for x
    x = 33,374,716.89/5,515.29
  6. Step 6: Final answer
    x = 6,051.31

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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.