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Finding the Fourth Proportional to 2,800.06, 3,866.68 and 1,807.06

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Solution

The fourth proportional to 2,800.06, 3,866.68 and 1,807.06 is: 2,495.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800.06 : 3,866.68 = 1,807.06 : x
  2. Step 2: Convert to fraction form
    2,800.06/3,866.68 = 1,807.06/x
  3. Step 3: Cross multiply
    2,800.06x = 3,866.68 × 1,807.06
  4. Step 4: Simplify right side
    2,800.06x = 6,987,322.76
  5. Step 5: Solve for x
    x = 6,987,322.76/2,800.06
  6. Step 6: Final answer
    x = 2,495.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.