Home / 4,702.15-7,054.11-1,891.20

Finding the Fourth Proportional to 4,702.15, 7,054.11 and 1,891.20

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Solution

The fourth proportional to 4,702.15, 7,054.11 and 1,891.20 is: 2,837.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,702.15 : 7,054.11 = 1,891.20 : x
  2. Step 2: Convert to fraction form
    4,702.15/7,054.11 = 1,891.20/x
  3. Step 3: Cross multiply
    4,702.15x = 7,054.11 × 1,891.20
  4. Step 4: Simplify right side
    4,702.15x = 13,340,697.56
  5. Step 5: Solve for x
    x = 13,340,697.56/4,702.15
  6. Step 6: Final answer
    x = 2,837.15

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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.