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Finding the Fourth Proportional to 3,070.10, 4,603.77 and 878.33

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Solution

The fourth proportional to 3,070.10, 4,603.77 and 878.33 is: 1,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.10 : 4,603.77 = 878.33 : x
  2. Step 2: Convert to fraction form
    3,070.10/4,603.77 = 878.33/x
  3. Step 3: Cross multiply
    3,070.10x = 4,603.77 × 878.33
  4. Step 4: Simplify right side
    3,070.10x = 4,043,629.30
  5. Step 5: Solve for x
    x = 4,043,629.30/3,070.10
  6. Step 6: Final answer
    x = 1,317.10

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Similar ratio
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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.