Home / 2,979.08-4,468.98-1,439

Finding the Fourth Proportional to 2,979.08, 4,468.98 and 1,439

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Solution

The fourth proportional to 2,979.08, 4,468.98 and 1,439 is: 2,158.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.08 : 4,468.98 = 1,439 : x
  2. Step 2: Convert to fraction form
    2,979.08/4,468.98 = 1,439/x
  3. Step 3: Cross multiply
    2,979.08x = 4,468.98 × 1,439
  4. Step 4: Simplify right side
    2,979.08x = 6,430,862.22
  5. Step 5: Solve for x
    x = 6,430,862.22/2,979.08
  6. Step 6: Final answer
    x = 2,158.67

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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.