Home / 1,890.20-2,835.72-591.77

Finding the Fourth Proportional to 1,890.20, 2,835.72 and 591.77

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Solution

The fourth proportional to 1,890.20, 2,835.72 and 591.77 is: 887.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.20 : 2,835.72 = 591.77 : x
  2. Step 2: Convert to fraction form
    1,890.20/2,835.72 = 591.77/x
  3. Step 3: Cross multiply
    1,890.20x = 2,835.72 × 591.77
  4. Step 4: Simplify right side
    1,890.20x = 1,678,079.85
  5. Step 5: Solve for x
    x = 1,678,079.85/1,890.20
  6. Step 6: Final answer
    x = 887.78

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1.5x scale

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.