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Finding the Fourth Proportional to 1,460.73, 2,191.12 and 486.83

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Solution

The fourth proportional to 1,460.73, 2,191.12 and 486.83 is: 730.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,460.73 : 2,191.12 = 486.83 : x
  2. Step 2: Convert to fraction form
    1,460.73/2,191.12 = 486.83/x
  3. Step 3: Cross multiply
    1,460.73x = 2,191.12 × 486.83
  4. Step 4: Simplify right side
    1,460.73x = 1,066,707.21
  5. Step 5: Solve for x
    x = 1,066,707.21/1,460.73
  6. Step 6: Final answer
    x = 730.26

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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.