Home / 2,878.51-4,317.77-1,904.39

Finding the Fourth Proportional to 2,878.51, 4,317.77 and 1,904.39

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Solution

The fourth proportional to 2,878.51, 4,317.77 and 1,904.39 is: 2,856.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.51 : 4,317.77 = 1,904.39 : x
  2. Step 2: Convert to fraction form
    2,878.51/4,317.77 = 1,904.39/x
  3. Step 3: Cross multiply
    2,878.51x = 4,317.77 × 1,904.39
  4. Step 4: Simplify right side
    2,878.51x = 8,222,702.45
  5. Step 5: Solve for x
    x = 8,222,702.45/2,878.51
  6. Step 6: Final answer
    x = 2,856.58

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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.