Home / 5,316.60-7,975.31-1,619.13

Finding the Fourth Proportional to 5,316.60, 7,975.31 and 1,619.13

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Solution

The fourth proportional to 5,316.60, 7,975.31 and 1,619.13 is: 2,428.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.60 : 7,975.31 = 1,619.13 : x
  2. Step 2: Convert to fraction form
    5,316.60/7,975.31 = 1,619.13/x
  3. Step 3: Cross multiply
    5,316.60x = 7,975.31 × 1,619.13
  4. Step 4: Simplify right side
    5,316.60x = 12,913,055.58
  5. Step 5: Solve for x
    x = 12,913,055.58/5,316.60
  6. Step 6: Final answer
    x = 2,428.82

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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.