Home / 1,890.40-2,829.53-1,010.70

Finding the Fourth Proportional to 1,890.40, 2,829.53 and 1,010.70

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Solution

The fourth proportional to 1,890.40, 2,829.53 and 1,010.70 is: 1,512.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.40 : 2,829.53 = 1,010.70 : x
  2. Step 2: Convert to fraction form
    1,890.40/2,829.53 = 1,010.70/x
  3. Step 3: Cross multiply
    1,890.40x = 2,829.53 × 1,010.70
  4. Step 4: Simplify right side
    1,890.40x = 2,859,800.92
  5. Step 5: Solve for x
    x = 2,859,800.92/1,890.40
  6. Step 6: Final answer
    x = 1,512.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.