Home / 1,702.45-2,551.60-1,239.07

Finding the Fourth Proportional to 1,702.45, 2,551.60 and 1,239.07

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Solution

The fourth proportional to 1,702.45, 2,551.60 and 1,239.07 is: 1,857.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.45 : 2,551.60 = 1,239.07 : x
  2. Step 2: Convert to fraction form
    1,702.45/2,551.60 = 1,239.07/x
  3. Step 3: Cross multiply
    1,702.45x = 2,551.60 × 1,239.07
  4. Step 4: Simplify right side
    1,702.45x = 3,161,611.01
  5. Step 5: Solve for x
    x = 3,161,611.01/1,702.45
  6. Step 6: Final answer
    x = 1,857.09

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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.