Home / 1,890.76-2,609.30-1,051.44

Finding the Fourth Proportional to 1,890.76, 2,609.30 and 1,051.44

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Solution

The fourth proportional to 1,890.76, 2,609.30 and 1,051.44 is: 1,451.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.76 : 2,609.30 = 1,051.44 : x
  2. Step 2: Convert to fraction form
    1,890.76/2,609.30 = 1,051.44/x
  3. Step 3: Cross multiply
    1,890.76x = 2,609.30 × 1,051.44
  4. Step 4: Simplify right side
    1,890.76x = 2,743,522.39
  5. Step 5: Solve for x
    x = 2,743,522.39/1,890.76
  6. Step 6: Final answer
    x = 1,451.02

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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.