Home / 5,285.25-7,931.52-1,822.50

Finding the Fourth Proportional to 5,285.25, 7,931.52 and 1,822.50

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Solution

The fourth proportional to 5,285.25, 7,931.52 and 1,822.50 is: 2,735.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.25 : 7,931.52 = 1,822.50 : x
  2. Step 2: Convert to fraction form
    5,285.25/7,931.52 = 1,822.50/x
  3. Step 3: Cross multiply
    5,285.25x = 7,931.52 × 1,822.50
  4. Step 4: Simplify right side
    5,285.25x = 14,455,195.20
  5. Step 5: Solve for x
    x = 14,455,195.20/5,285.25
  6. Step 6: Final answer
    x = 2,735.01

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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.