Home / 3,720.47-5,582.93-1,380.08

Finding the Fourth Proportional to 3,720.47, 5,582.93 and 1,380.08

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Solution

The fourth proportional to 3,720.47, 5,582.93 and 1,380.08 is: 2,070.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.47 : 5,582.93 = 1,380.08 : x
  2. Step 2: Convert to fraction form
    3,720.47/5,582.93 = 1,380.08/x
  3. Step 3: Cross multiply
    3,720.47x = 5,582.93 × 1,380.08
  4. Step 4: Simplify right side
    3,720.47x = 7,704,855.22
  5. Step 5: Solve for x
    x = 7,704,855.22/3,720.47
  6. Step 6: Final answer
    x = 2,070.94

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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.