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Finding the Fourth Proportional to 1,460.65, 2,191.32 and 486.76

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Solution

The fourth proportional to 1,460.65, 2,191.32 and 486.76 is: 730.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,460.65 : 2,191.32 = 486.76 : x
  2. Step 2: Convert to fraction form
    1,460.65/2,191.32 = 486.76/x
  3. Step 3: Cross multiply
    1,460.65x = 2,191.32 × 486.76
  4. Step 4: Simplify right side
    1,460.65x = 1,066,646.92
  5. Step 5: Solve for x
    x = 1,066,646.92/1,460.65
  6. Step 6: Final answer
    x = 730.25

Related Problems

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Double scale
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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.