Home / 3,651.21-5,476.95-1,186.05

Finding the Fourth Proportional to 3,651.21, 5,476.95 and 1,186.05

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Solution

The fourth proportional to 3,651.21, 5,476.95 and 1,186.05 is: 1,779.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.21 : 5,476.95 = 1,186.05 : x
  2. Step 2: Convert to fraction form
    3,651.21/5,476.95 = 1,186.05/x
  3. Step 3: Cross multiply
    3,651.21x = 5,476.95 × 1,186.05
  4. Step 4: Simplify right side
    3,651.21x = 6,495,936.55
  5. Step 5: Solve for x
    x = 6,495,936.55/3,651.21
  6. Step 6: Final answer
    x = 1,779.12

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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.