Home / 1,535.45-2,302.37-668.75

Finding the Fourth Proportional to 1,535.45, 2,302.37 and 668.75

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Solution

The fourth proportional to 1,535.45, 2,302.37 and 668.75 is: 1,002.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535.45 : 2,302.37 = 668.75 : x
  2. Step 2: Convert to fraction form
    1,535.45/2,302.37 = 668.75/x
  3. Step 3: Cross multiply
    1,535.45x = 2,302.37 × 668.75
  4. Step 4: Simplify right side
    1,535.45x = 1,539,706.59
  5. Step 5: Solve for x
    x = 1,539,706.59/1,535.45
  6. Step 6: Final answer
    x = 1,002.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.