Home / 3,115.08-4,666.74-1,883.40

Finding the Fourth Proportional to 3,115.08, 4,666.74 and 1,883.40

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Solution

The fourth proportional to 3,115.08, 4,666.74 and 1,883.40 is: 2,821.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.08 : 4,666.74 = 1,883.40 : x
  2. Step 2: Convert to fraction form
    3,115.08/4,666.74 = 1,883.40/x
  3. Step 3: Cross multiply
    3,115.08x = 4,666.74 × 1,883.40
  4. Step 4: Simplify right side
    3,115.08x = 8,789,338.12
  5. Step 5: Solve for x
    x = 8,789,338.12/3,115.08
  6. Step 6: Final answer
    x = 2,821.54

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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.