Home / 3,134.69-4,703.39-1,287.18

Finding the Fourth Proportional to 3,134.69, 4,703.39 and 1,287.18

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Solution

The fourth proportional to 3,134.69, 4,703.39 and 1,287.18 is: 1,931.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.69 : 4,703.39 = 1,287.18 : x
  2. Step 2: Convert to fraction form
    3,134.69/4,703.39 = 1,287.18/x
  3. Step 3: Cross multiply
    3,134.69x = 4,703.39 × 1,287.18
  4. Step 4: Simplify right side
    3,134.69x = 6,054,103.10
  5. Step 5: Solve for x
    x = 6,054,103.10/3,134.69
  6. Step 6: Final answer
    x = 1,931.33

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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.