Home / 1,191.23-1,643.55-1,144.52

Finding the Fourth Proportional to 1,191.23, 1,643.55 and 1,144.52

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Solution

The fourth proportional to 1,191.23, 1,643.55 and 1,144.52 is: 1,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191.23 : 1,643.55 = 1,144.52 : x
  2. Step 2: Convert to fraction form
    1,191.23/1,643.55 = 1,144.52/x
  3. Step 3: Cross multiply
    1,191.23x = 1,643.55 × 1,144.52
  4. Step 4: Simplify right side
    1,191.23x = 1,881,075.85
  5. Step 5: Solve for x
    x = 1,881,075.85/1,191.23
  6. Step 6: Final answer
    x = 1,579.10

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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.