Home / 3,368.55-5,054.95-1,288.74

Finding the Fourth Proportional to 3,368.55, 5,054.95 and 1,288.74

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Solution

The fourth proportional to 3,368.55, 5,054.95 and 1,288.74 is: 1,933.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.55 : 5,054.95 = 1,288.74 : x
  2. Step 2: Convert to fraction form
    3,368.55/5,054.95 = 1,288.74/x
  3. Step 3: Cross multiply
    3,368.55x = 5,054.95 × 1,288.74
  4. Step 4: Simplify right side
    3,368.55x = 6,514,516.26
  5. Step 5: Solve for x
    x = 6,514,516.26/3,368.55
  6. Step 6: Final answer
    x = 1,933.92

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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.