Home / 5,280.99-7,921.40-1,583.16

Finding the Fourth Proportional to 5,280.99, 7,921.40 and 1,583.16

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Solution

The fourth proportional to 5,280.99, 7,921.40 and 1,583.16 is: 2,374.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.99 : 7,921.40 = 1,583.16 : x
  2. Step 2: Convert to fraction form
    5,280.99/7,921.40 = 1,583.16/x
  3. Step 3: Cross multiply
    5,280.99x = 7,921.40 × 1,583.16
  4. Step 4: Simplify right side
    5,280.99x = 12,540,835.71
  5. Step 5: Solve for x
    x = 12,540,835.71/5,280.99
  6. Step 6: Final answer
    x = 2,374.71

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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.