Home / 4,690.80-7,036.56-1,403.64

Finding the Fourth Proportional to 4,690.80, 7,036.56 and 1,403.64

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Solution

The fourth proportional to 4,690.80, 7,036.56 and 1,403.64 is: 2,105.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,690.80 : 7,036.56 = 1,403.64 : x
  2. Step 2: Convert to fraction form
    4,690.80/7,036.56 = 1,403.64/x
  3. Step 3: Cross multiply
    4,690.80x = 7,036.56 × 1,403.64
  4. Step 4: Simplify right side
    4,690.80x = 9,876,797.08
  5. Step 5: Solve for x
    x = 9,876,797.08/4,690.80
  6. Step 6: Final answer
    x = 2,105.57

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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.