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Finding the Fourth Proportional to 1,206, 1,807.28 and 975.44

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Solution

The fourth proportional to 1,206, 1,807.28 and 975.44 is: 1,461.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206 : 1,807.28 = 975.44 : x
  2. Step 2: Convert to fraction form
    1,206/1,807.28 = 975.44/x
  3. Step 3: Cross multiply
    1,206x = 1,807.28 × 975.44
  4. Step 4: Simplify right side
    1,206x = 1,762,893.20
  5. Step 5: Solve for x
    x = 1,762,893.20/1,206
  6. Step 6: Final answer
    x = 1,461.77

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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.