Home / 1,899.45-2,621.70-1,153.85

Finding the Fourth Proportional to 1,899.45, 2,621.70 and 1,153.85

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Solution

The fourth proportional to 1,899.45, 2,621.70 and 1,153.85 is: 1,592.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.45 : 2,621.70 = 1,153.85 : x
  2. Step 2: Convert to fraction form
    1,899.45/2,621.70 = 1,153.85/x
  3. Step 3: Cross multiply
    1,899.45x = 2,621.70 × 1,153.85
  4. Step 4: Simplify right side
    1,899.45x = 3,025,035.44
  5. Step 5: Solve for x
    x = 3,025,035.44/1,899.45
  6. Step 6: Final answer
    x = 1,592.58

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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.