Home / 2,006.60-3,006.40-1,172.50

Finding the Fourth Proportional to 2,006.60, 3,006.40 and 1,172.50

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Solution

The fourth proportional to 2,006.60, 3,006.40 and 1,172.50 is: 1,756.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,006.60 : 3,006.40 = 1,172.50 : x
  2. Step 2: Convert to fraction form
    2,006.60/3,006.40 = 1,172.50/x
  3. Step 3: Cross multiply
    2,006.60x = 3,006.40 × 1,172.50
  4. Step 4: Simplify right side
    2,006.60x = 3,525,004
  5. Step 5: Solve for x
    x = 3,525,004/2,006.60
  6. Step 6: Final answer
    x = 1,756.70

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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.