Home / 2,825.08-4,237.62-1,285

Finding the Fourth Proportional to 2,825.08, 4,237.62 and 1,285

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Solution

The fourth proportional to 2,825.08, 4,237.62 and 1,285 is: 1,927.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.08 : 4,237.62 = 1,285 : x
  2. Step 2: Convert to fraction form
    2,825.08/4,237.62 = 1,285/x
  3. Step 3: Cross multiply
    2,825.08x = 4,237.62 × 1,285
  4. Step 4: Simplify right side
    2,825.08x = 5,445,341.70
  5. Step 5: Solve for x
    x = 5,445,341.70/2,825.08
  6. Step 6: Final answer
    x = 1,927.50

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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.