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Finding the Fourth Proportional to 652.51, 901.63 and 513.69

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Solution

The fourth proportional to 652.51, 901.63 and 513.69 is: 709.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.51 : 901.63 = 513.69 : x
  2. Step 2: Convert to fraction form
    652.51/901.63 = 513.69/x
  3. Step 3: Cross multiply
    652.51x = 901.63 × 513.69
  4. Step 4: Simplify right side
    652.51x = 463,157.03
  5. Step 5: Solve for x
    x = 463,157.03/652.51
  6. Step 6: Final answer
    x = 709.81

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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.