Home / 5,317.39-7,975.10-1,618.63

Finding the Fourth Proportional to 5,317.39, 7,975.10 and 1,618.63

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Solution

The fourth proportional to 5,317.39, 7,975.10 and 1,618.63 is: 2,427.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.39 : 7,975.10 = 1,618.63 : x
  2. Step 2: Convert to fraction form
    5,317.39/7,975.10 = 1,618.63/x
  3. Step 3: Cross multiply
    5,317.39x = 7,975.10 × 1,618.63
  4. Step 4: Simplify right side
    5,317.39x = 12,908,708.08
  5. Step 5: Solve for x
    x = 12,908,708.08/5,317.39
  6. Step 6: Final answer
    x = 2,427.64

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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.