Home / 1,890.02-2,608.76-1,330.62

Finding the Fourth Proportional to 1,890.02, 2,608.76 and 1,330.62

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Solution

The fourth proportional to 1,890.02, 2,608.76 and 1,330.62 is: 1,836.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.02 : 2,608.76 = 1,330.62 : x
  2. Step 2: Convert to fraction form
    1,890.02/2,608.76 = 1,330.62/x
  3. Step 3: Cross multiply
    1,890.02x = 2,608.76 × 1,330.62
  4. Step 4: Simplify right side
    1,890.02x = 3,471,268.23
  5. Step 5: Solve for x
    x = 3,471,268.23/1,890.02
  6. Step 6: Final answer
    x = 1,836.63

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Similar ratio
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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.