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Finding the Fourth Proportional to 7,798.95, 11,699.24 and 2,868.55

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Solution

The fourth proportional to 7,798.95, 11,699.24 and 2,868.55 is: 4,303.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,798.95 : 11,699.24 = 2,868.55 : x
  2. Step 2: Convert to fraction form
    7,798.95/11,699.24 = 2,868.55/x
  3. Step 3: Cross multiply
    7,798.95x = 11,699.24 × 2,868.55
  4. Step 4: Simplify right side
    7,798.95x = 33,559,811.31
  5. Step 5: Solve for x
    x = 33,559,811.31/7,798.95
  6. Step 6: Final answer
    x = 4,303.12

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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.