Home / 5,320.63-7,980.94-1,424.93

Finding the Fourth Proportional to 5,320.63, 7,980.94 and 1,424.93

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Solution

The fourth proportional to 5,320.63, 7,980.94 and 1,424.93 is: 2,137.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.63 : 7,980.94 = 1,424.93 : x
  2. Step 2: Convert to fraction form
    5,320.63/7,980.94 = 1,424.93/x
  3. Step 3: Cross multiply
    5,320.63x = 7,980.94 × 1,424.93
  4. Step 4: Simplify right side
    5,320.63x = 11,372,280.83
  5. Step 5: Solve for x
    x = 11,372,280.83/5,320.63
  6. Step 6: Final answer
    x = 2,137.39

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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.