Home / 1,888.22-2,607.05-1,180.38

Finding the Fourth Proportional to 1,888.22, 2,607.05 and 1,180.38

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Solution

The fourth proportional to 1,888.22, 2,607.05 and 1,180.38 is: 1,629.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.22 : 2,607.05 = 1,180.38 : x
  2. Step 2: Convert to fraction form
    1,888.22/2,607.05 = 1,180.38/x
  3. Step 3: Cross multiply
    1,888.22x = 2,607.05 × 1,180.38
  4. Step 4: Simplify right side
    1,888.22x = 3,077,317.98
  5. Step 5: Solve for x
    x = 3,077,317.98/1,888.22
  6. Step 6: Final answer
    x = 1,629.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.