Home / 5,178.53-7,762.13-2,543.00

Finding the Fourth Proportional to 5,178.53, 7,762.13 and 2,543.00

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Solution

The fourth proportional to 5,178.53, 7,762.13 and 2,543.00 is: 3,811.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.53 : 7,762.13 = 2,543.00 : x
  2. Step 2: Convert to fraction form
    5,178.53/7,762.13 = 2,543.00/x
  3. Step 3: Cross multiply
    5,178.53x = 7,762.13 × 2,543.00
  4. Step 4: Simplify right side
    5,178.53x = 19,739,054.60
  5. Step 5: Solve for x
    x = 19,739,054.60/5,178.53
  6. Step 6: Final answer
    x = 3,811.71

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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.