Home / 1,230.48-1,840.68-1,025.34

Finding the Fourth Proportional to 1,230.48, 1,840.68 and 1,025.34

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Solution

The fourth proportional to 1,230.48, 1,840.68 and 1,025.34 is: 1,533.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.48 : 1,840.68 = 1,025.34 : x
  2. Step 2: Convert to fraction form
    1,230.48/1,840.68 = 1,025.34/x
  3. Step 3: Cross multiply
    1,230.48x = 1,840.68 × 1,025.34
  4. Step 4: Simplify right side
    1,230.48x = 1,887,322.83
  5. Step 5: Solve for x
    x = 1,887,322.83/1,230.48
  6. Step 6: Final answer
    x = 1,533.81

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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.