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Finding the Fourth Proportional to 1,483.62, 2,047.53 and 862.50

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Solution

The fourth proportional to 1,483.62, 2,047.53 and 862.50 is: 1,190.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,483.62 : 2,047.53 = 862.50 : x
  2. Step 2: Convert to fraction form
    1,483.62/2,047.53 = 862.50/x
  3. Step 3: Cross multiply
    1,483.62x = 2,047.53 × 862.50
  4. Step 4: Simplify right side
    1,483.62x = 1,765,994.63
  5. Step 5: Solve for x
    x = 1,765,994.63/1,483.62
  6. Step 6: Final answer
    x = 1,190.33

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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.