Home / 1,702.88-2,557.20-1,125.44

Finding the Fourth Proportional to 1,702.88, 2,557.20 and 1,125.44

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Solution

The fourth proportional to 1,702.88, 2,557.20 and 1,125.44 is: 1,690.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.88 : 2,557.20 = 1,125.44 : x
  2. Step 2: Convert to fraction form
    1,702.88/2,557.20 = 1,125.44/x
  3. Step 3: Cross multiply
    1,702.88x = 2,557.20 × 1,125.44
  4. Step 4: Simplify right side
    1,702.88x = 2,877,975.17
  5. Step 5: Solve for x
    x = 2,877,975.17/1,702.88
  6. Step 6: Final answer
    x = 1,690.06

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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.