Home / 1,656.32-2,285.73-938.48

Finding the Fourth Proportional to 1,656.32, 2,285.73 and 938.48

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Solution

The fourth proportional to 1,656.32, 2,285.73 and 938.48 is: 1,295.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656.32 : 2,285.73 = 938.48 : x
  2. Step 2: Convert to fraction form
    1,656.32/2,285.73 = 938.48/x
  3. Step 3: Cross multiply
    1,656.32x = 2,285.73 × 938.48
  4. Step 4: Simplify right side
    1,656.32x = 2,145,100.46
  5. Step 5: Solve for x
    x = 2,145,100.46/1,656.32
  6. Step 6: Final answer
    x = 1,295.10

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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.