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Finding the Fourth Proportional to 1,283.62, 1,922.63 and 975.62

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Solution

The fourth proportional to 1,283.62, 1,922.63 and 975.62 is: 1,461.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283.62 : 1,922.63 = 975.62 : x
  2. Step 2: Convert to fraction form
    1,283.62/1,922.63 = 975.62/x
  3. Step 3: Cross multiply
    1,283.62x = 1,922.63 × 975.62
  4. Step 4: Simplify right side
    1,283.62x = 1,875,756.28
  5. Step 5: Solve for x
    x = 1,875,756.28/1,283.62
  6. Step 6: Final answer
    x = 1,461.30

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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.