Home / 3,651.68-5,477.83-1,186.45

Finding the Fourth Proportional to 3,651.68, 5,477.83 and 1,186.45

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Solution

The fourth proportional to 3,651.68, 5,477.83 and 1,186.45 is: 1,779.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.68 : 5,477.83 = 1,186.45 : x
  2. Step 2: Convert to fraction form
    3,651.68/5,477.83 = 1,186.45/x
  3. Step 3: Cross multiply
    3,651.68x = 5,477.83 × 1,186.45
  4. Step 4: Simplify right side
    3,651.68x = 6,499,154.74
  5. Step 5: Solve for x
    x = 6,499,154.74/3,651.68
  6. Step 6: Final answer
    x = 1,779.77

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1.5x scale

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.