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Finding the Fourth Proportional to 2,825.10, 4,237.65 and 773.10

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Solution

The fourth proportional to 2,825.10, 4,237.65 and 773.10 is: 1,159.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.10 : 4,237.65 = 773.10 : x
  2. Step 2: Convert to fraction form
    2,825.10/4,237.65 = 773.10/x
  3. Step 3: Cross multiply
    2,825.10x = 4,237.65 × 773.10
  4. Step 4: Simplify right side
    2,825.10x = 3,276,127.22
  5. Step 5: Solve for x
    x = 3,276,127.22/2,825.10
  6. Step 6: Final answer
    x = 1,159.65

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1.5x scale

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.