Home / 5,280.02-7,905.45-3,977.54

Finding the Fourth Proportional to 5,280.02, 7,905.45 and 3,977.54

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Solution

The fourth proportional to 5,280.02, 7,905.45 and 3,977.54 is: 5,955.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.02 : 7,905.45 = 3,977.54 : x
  2. Step 2: Convert to fraction form
    5,280.02/7,905.45 = 3,977.54/x
  3. Step 3: Cross multiply
    5,280.02x = 7,905.45 × 3,977.54
  4. Step 4: Simplify right side
    5,280.02x = 31,444,243.59
  5. Step 5: Solve for x
    x = 31,444,243.59/5,280.02
  6. Step 6: Final answer
    x = 5,955.33

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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.