Home / 3,117.08-4,300.90-1,858.61

Finding the Fourth Proportional to 3,117.08, 4,300.90 and 1,858.61

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Solution

The fourth proportional to 3,117.08, 4,300.90 and 1,858.61 is: 2,564.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.08 : 4,300.90 = 1,858.61 : x
  2. Step 2: Convert to fraction form
    3,117.08/4,300.90 = 1,858.61/x
  3. Step 3: Cross multiply
    3,117.08x = 4,300.90 × 1,858.61
  4. Step 4: Simplify right side
    3,117.08x = 7,993,701.85
  5. Step 5: Solve for x
    x = 7,993,701.85/3,117.08
  6. Step 6: Final answer
    x = 2,564.48

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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.