Home / 1,899.36-2,620.49-1,153.08

Finding the Fourth Proportional to 1,899.36, 2,620.49 and 1,153.08

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Solution

The fourth proportional to 1,899.36, 2,620.49 and 1,153.08 is: 1,590.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.36 : 2,620.49 = 1,153.08 : x
  2. Step 2: Convert to fraction form
    1,899.36/2,620.49 = 1,153.08/x
  3. Step 3: Cross multiply
    1,899.36x = 2,620.49 × 1,153.08
  4. Step 4: Simplify right side
    1,899.36x = 3,021,628.84
  5. Step 5: Solve for x
    x = 3,021,628.84/1,899.36
  6. Step 6: Final answer
    x = 1,590.87

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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.