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Finding the Fourth Proportional to 1,860.49, 2,807.61 and 1,798.52

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Solution

The fourth proportional to 1,860.49, 2,807.61 and 1,798.52 is: 2,714.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.49 : 2,807.61 = 1,798.52 : x
  2. Step 2: Convert to fraction form
    1,860.49/2,807.61 = 1,798.52/x
  3. Step 3: Cross multiply
    1,860.49x = 2,807.61 × 1,798.52
  4. Step 4: Simplify right side
    1,860.49x = 5,049,542.74
  5. Step 5: Solve for x
    x = 5,049,542.74/1,860.49
  6. Step 6: Final answer
    x = 2,714.09

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.