Home / 3,655.77-5,483.04-1,315.31

Finding the Fourth Proportional to 3,655.77, 5,483.04 and 1,315.31

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Solution

The fourth proportional to 3,655.77, 5,483.04 and 1,315.31 is: 1,972.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.77 : 5,483.04 = 1,315.31 : x
  2. Step 2: Convert to fraction form
    3,655.77/5,483.04 = 1,315.31/x
  3. Step 3: Cross multiply
    3,655.77x = 5,483.04 × 1,315.31
  4. Step 4: Simplify right side
    3,655.77x = 7,211,872.39
  5. Step 5: Solve for x
    x = 7,211,872.39/3,655.77
  6. Step 6: Final answer
    x = 1,972.74

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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.