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Finding the Fourth Proportional to 1,165.86, 1,749.36 and 473.01

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Solution

The fourth proportional to 1,165.86, 1,749.36 and 473.01 is: 709.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.86 : 1,749.36 = 473.01 : x
  2. Step 2: Convert to fraction form
    1,165.86/1,749.36 = 473.01/x
  3. Step 3: Cross multiply
    1,165.86x = 1,749.36 × 473.01
  4. Step 4: Simplify right side
    1,165.86x = 827,459.99
  5. Step 5: Solve for x
    x = 827,459.99/1,165.86
  6. Step 6: Final answer
    x = 709.74

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Double scale
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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.