Home / 1,941.74-2,911.64-900.85

Finding the Fourth Proportional to 1,941.74, 2,911.64 and 900.85

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Solution

The fourth proportional to 1,941.74, 2,911.64 and 900.85 is: 1,350.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.74 : 2,911.64 = 900.85 : x
  2. Step 2: Convert to fraction form
    1,941.74/2,911.64 = 900.85/x
  3. Step 3: Cross multiply
    1,941.74x = 2,911.64 × 900.85
  4. Step 4: Simplify right side
    1,941.74x = 2,622,950.89
  5. Step 5: Solve for x
    x = 2,622,950.89/1,941.74
  6. Step 6: Final answer
    x = 1,350.82

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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.