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Finding the Fourth Proportional to 1,948.26, 2,922.38 and 580.26

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Solution

The fourth proportional to 1,948.26, 2,922.38 and 580.26 is: 870.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.26 : 2,922.38 = 580.26 : x
  2. Step 2: Convert to fraction form
    1,948.26/2,922.38 = 580.26/x
  3. Step 3: Cross multiply
    1,948.26x = 2,922.38 × 580.26
  4. Step 4: Simplify right side
    1,948.26x = 1,695,740.22
  5. Step 5: Solve for x
    x = 1,695,740.22/1,948.26
  6. Step 6: Final answer
    x = 870.39

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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.