Home / 1,890.63-2,608.87-1,144.32

Finding the Fourth Proportional to 1,890.63, 2,608.87 and 1,144.32

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Solution

The fourth proportional to 1,890.63, 2,608.87 and 1,144.32 is: 1,579.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.63 : 2,608.87 = 1,144.32 : x
  2. Step 2: Convert to fraction form
    1,890.63/2,608.87 = 1,144.32/x
  3. Step 3: Cross multiply
    1,890.63x = 2,608.87 × 1,144.32
  4. Step 4: Simplify right side
    1,890.63x = 2,985,382.12
  5. Step 5: Solve for x
    x = 2,985,382.12/1,890.63
  6. Step 6: Final answer
    x = 1,579.04

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Double scale
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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.