Home / 5,316.40-7,971.67-2,543.77

Finding the Fourth Proportional to 5,316.40, 7,971.67 and 2,543.77

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Solution

The fourth proportional to 5,316.40, 7,971.67 and 2,543.77 is: 3,814.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.40 : 7,971.67 = 2,543.77 : x
  2. Step 2: Convert to fraction form
    5,316.40/7,971.67 = 2,543.77/x
  3. Step 3: Cross multiply
    5,316.40x = 7,971.67 × 2,543.77
  4. Step 4: Simplify right side
    5,316.40x = 20,278,095.00
  5. Step 5: Solve for x
    x = 20,278,095.00/5,316.40
  6. Step 6: Final answer
    x = 3,814.25

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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.