Home / 1,194.10-1,647.90-670.12

Finding the Fourth Proportional to 1,194.10, 1,647.90 and 670.12

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Solution

The fourth proportional to 1,194.10, 1,647.90 and 670.12 is: 924.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194.10 : 1,647.90 = 670.12 : x
  2. Step 2: Convert to fraction form
    1,194.10/1,647.90 = 670.12/x
  3. Step 3: Cross multiply
    1,194.10x = 1,647.90 × 670.12
  4. Step 4: Simplify right side
    1,194.10x = 1,104,290.75
  5. Step 5: Solve for x
    x = 1,104,290.75/1,194.10
  6. Step 6: Final answer
    x = 924.79

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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.