Home / 3,477.35-5,215.29-1,284.57

Finding the Fourth Proportional to 3,477.35, 5,215.29 and 1,284.57

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Solution

The fourth proportional to 3,477.35, 5,215.29 and 1,284.57 is: 1,926.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.35 : 5,215.29 = 1,284.57 : x
  2. Step 2: Convert to fraction form
    3,477.35/5,215.29 = 1,284.57/x
  3. Step 3: Cross multiply
    3,477.35x = 5,215.29 × 1,284.57
  4. Step 4: Simplify right side
    3,477.35x = 6,699,405.08
  5. Step 5: Solve for x
    x = 6,699,405.08/3,477.35
  6. Step 6: Final answer
    x = 1,926.59

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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.