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Finding the Fourth Proportional to 2,576.34, 3,864.53 and 910.51

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Solution

The fourth proportional to 2,576.34, 3,864.53 and 910.51 is: 1,365.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.34 : 3,864.53 = 910.51 : x
  2. Step 2: Convert to fraction form
    2,576.34/3,864.53 = 910.51/x
  3. Step 3: Cross multiply
    2,576.34x = 3,864.53 × 910.51
  4. Step 4: Simplify right side
    2,576.34x = 3,518,685.83
  5. Step 5: Solve for x
    x = 3,518,685.83/2,576.34
  6. Step 6: Final answer
    x = 1,365.77

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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.