Home / 5,211.50-7,818.60-1,702.58

Finding the Fourth Proportional to 5,211.50, 7,818.60 and 1,702.58

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Solution

The fourth proportional to 5,211.50, 7,818.60 and 1,702.58 is: 2,554.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.50 : 7,818.60 = 1,702.58 : x
  2. Step 2: Convert to fraction form
    5,211.50/7,818.60 = 1,702.58/x
  3. Step 3: Cross multiply
    5,211.50x = 7,818.60 × 1,702.58
  4. Step 4: Simplify right side
    5,211.50x = 13,311,791.99
  5. Step 5: Solve for x
    x = 13,311,791.99/5,211.50
  6. Step 6: Final answer
    x = 2,554.31

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1.5x scale

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.