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Finding the Fourth Proportional to 7,868.85, 11,794.95 and 2,602.50

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Solution

The fourth proportional to 7,868.85, 11,794.95 and 2,602.50 is: 3,901.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.85 : 11,794.95 = 2,602.50 : x
  2. Step 2: Convert to fraction form
    7,868.85/11,794.95 = 2,602.50/x
  3. Step 3: Cross multiply
    7,868.85x = 11,794.95 × 2,602.50
  4. Step 4: Simplify right side
    7,868.85x = 30,696,423.64
  5. Step 5: Solve for x
    x = 30,696,423.64/7,868.85
  6. Step 6: Final answer
    x = 3,901.01

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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.