Home / 2,948.78-4,069.66-1,622.60

Finding the Fourth Proportional to 2,948.78, 4,069.66 and 1,622.60

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Solution

The fourth proportional to 2,948.78, 4,069.66 and 1,622.60 is: 2,239.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.78 : 4,069.66 = 1,622.60 : x
  2. Step 2: Convert to fraction form
    2,948.78/4,069.66 = 1,622.60/x
  3. Step 3: Cross multiply
    2,948.78x = 4,069.66 × 1,622.60
  4. Step 4: Simplify right side
    2,948.78x = 6,603,430.32
  5. Step 5: Solve for x
    x = 6,603,430.32/2,948.78
  6. Step 6: Final answer
    x = 2,239.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.