Home / 5,115.42-7,054.29-4,117.50

Finding the Fourth Proportional to 5,115.42, 7,054.29 and 4,117.50

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Solution

The fourth proportional to 5,115.42, 7,054.29 and 4,117.50 is: 5,678.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.42 : 7,054.29 = 4,117.50 : x
  2. Step 2: Convert to fraction form
    5,115.42/7,054.29 = 4,117.50/x
  3. Step 3: Cross multiply
    5,115.42x = 7,054.29 × 4,117.50
  4. Step 4: Simplify right side
    5,115.42x = 29,046,039.08
  5. Step 5: Solve for x
    x = 29,046,039.08/5,115.42
  6. Step 6: Final answer
    x = 5,678.13

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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.