Home / 1,509.22-2,272.23-1,181.94

Finding the Fourth Proportional to 1,509.22, 2,272.23 and 1,181.94

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Solution

The fourth proportional to 1,509.22, 2,272.23 and 1,181.94 is: 1,779.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509.22 : 2,272.23 = 1,181.94 : x
  2. Step 2: Convert to fraction form
    1,509.22/2,272.23 = 1,181.94/x
  3. Step 3: Cross multiply
    1,509.22x = 2,272.23 × 1,181.94
  4. Step 4: Simplify right side
    1,509.22x = 2,685,639.53
  5. Step 5: Solve for x
    x = 2,685,639.53/1,509.22
  6. Step 6: Final answer
    x = 1,779.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.