Home / 7,865.74-11,798.64-2,319.15

Finding the Fourth Proportional to 7,865.74, 11,798.64 and 2,319.15

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Solution

The fourth proportional to 7,865.74, 11,798.64 and 2,319.15 is: 3,478.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.74 : 11,798.64 = 2,319.15 : x
  2. Step 2: Convert to fraction form
    7,865.74/11,798.64 = 2,319.15/x
  3. Step 3: Cross multiply
    7,865.74x = 11,798.64 × 2,319.15
  4. Step 4: Simplify right side
    7,865.74x = 27,362,815.96
  5. Step 5: Solve for x
    x = 27,362,815.96/7,865.74
  6. Step 6: Final answer
    x = 3,478.73

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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.