Home / 3,217.08-4,438.80-1,890.28

Finding the Fourth Proportional to 3,217.08, 4,438.80 and 1,890.28

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Solution

The fourth proportional to 3,217.08, 4,438.80 and 1,890.28 is: 2,608.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.08 : 4,438.80 = 1,890.28 : x
  2. Step 2: Convert to fraction form
    3,217.08/4,438.80 = 1,890.28/x
  3. Step 3: Cross multiply
    3,217.08x = 4,438.80 × 1,890.28
  4. Step 4: Simplify right side
    3,217.08x = 8,390,574.86
  5. Step 5: Solve for x
    x = 8,390,574.86/3,217.08
  6. Step 6: Final answer
    x = 2,608.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.