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Finding the Fourth Proportional to 1,025.58, 1,415.52 and 652.48

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Solution

The fourth proportional to 1,025.58, 1,415.52 and 652.48 is: 900.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025.58 : 1,415.52 = 652.48 : x
  2. Step 2: Convert to fraction form
    1,025.58/1,415.52 = 652.48/x
  3. Step 3: Cross multiply
    1,025.58x = 1,415.52 × 652.48
  4. Step 4: Simplify right side
    1,025.58x = 923,598.49
  5. Step 5: Solve for x
    x = 923,598.49/1,025.58
  6. Step 6: Final answer
    x = 900.56

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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.