Home / 3,134.80-4,698.60-1,284.70

Finding the Fourth Proportional to 3,134.80, 4,698.60 and 1,284.70

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Solution

The fourth proportional to 3,134.80, 4,698.60 and 1,284.70 is: 1,925.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.80 : 4,698.60 = 1,284.70 : x
  2. Step 2: Convert to fraction form
    3,134.80/4,698.60 = 1,284.70/x
  3. Step 3: Cross multiply
    3,134.80x = 4,698.60 × 1,284.70
  4. Step 4: Simplify right side
    3,134.80x = 6,036,291.42
  5. Step 5: Solve for x
    x = 6,036,291.42/3,134.80
  6. Step 6: Final answer
    x = 1,925.57

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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.