Home / 1,107.19-1,527.77-609.75

Finding the Fourth Proportional to 1,107.19, 1,527.77 and 609.75

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Solution

The fourth proportional to 1,107.19, 1,527.77 and 609.75 is: 841.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107.19 : 1,527.77 = 609.75 : x
  2. Step 2: Convert to fraction form
    1,107.19/1,527.77 = 609.75/x
  3. Step 3: Cross multiply
    1,107.19x = 1,527.77 × 609.75
  4. Step 4: Simplify right side
    1,107.19x = 931,554.71
  5. Step 5: Solve for x
    x = 931,554.71/1,107.19
  6. Step 6: Final answer
    x = 841.37

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Double scale
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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.