Home / 3,135.07-4,702.70-1,490.77

Finding the Fourth Proportional to 3,135.07, 4,702.70 and 1,490.77

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Solution

The fourth proportional to 3,135.07, 4,702.70 and 1,490.77 is: 2,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.07 : 4,702.70 = 1,490.77 : x
  2. Step 2: Convert to fraction form
    3,135.07/4,702.70 = 1,490.77/x
  3. Step 3: Cross multiply
    3,135.07x = 4,702.70 × 1,490.77
  4. Step 4: Simplify right side
    3,135.07x = 7,010,644.08
  5. Step 5: Solve for x
    x = 7,010,644.08/3,135.07
  6. Step 6: Final answer
    x = 2,236.20

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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.