Home / 1,579.38-2,369.34-702.20

Finding the Fourth Proportional to 1,579.38, 2,369.34 and 702.20

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Solution

The fourth proportional to 1,579.38, 2,369.34 and 702.20 is: 1,053.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.38 : 2,369.34 = 702.20 : x
  2. Step 2: Convert to fraction form
    1,579.38/2,369.34 = 702.20/x
  3. Step 3: Cross multiply
    1,579.38x = 2,369.34 × 702.20
  4. Step 4: Simplify right side
    1,579.38x = 1,663,738.70
  5. Step 5: Solve for x
    x = 1,663,738.70/1,579.38
  6. Step 6: Final answer
    x = 1,053.41

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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.