Home / 5,319.37-7,979.46-1,621.87

Finding the Fourth Proportional to 5,319.37, 7,979.46 and 1,621.87

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Solution

The fourth proportional to 5,319.37, 7,979.46 and 1,621.87 is: 2,432.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.37 : 7,979.46 = 1,621.87 : x
  2. Step 2: Convert to fraction form
    5,319.37/7,979.46 = 1,621.87/x
  3. Step 3: Cross multiply
    5,319.37x = 7,979.46 × 1,621.87
  4. Step 4: Simplify right side
    5,319.37x = 12,941,674.77
  5. Step 5: Solve for x
    x = 12,941,674.77/5,319.37
  6. Step 6: Final answer
    x = 2,432.93

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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.