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Finding the Fourth Proportional to 1,756.54, 2,634.64 and 458.01

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Solution

The fourth proportional to 1,756.54, 2,634.64 and 458.01 is: 686.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,756.54 : 2,634.64 = 458.01 : x
  2. Step 2: Convert to fraction form
    1,756.54/2,634.64 = 458.01/x
  3. Step 3: Cross multiply
    1,756.54x = 2,634.64 × 458.01
  4. Step 4: Simplify right side
    1,756.54x = 1,206,690.32
  5. Step 5: Solve for x
    x = 1,206,690.32/1,756.54
  6. Step 6: Final answer
    x = 686.97

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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.