Home / 3,059.32-4,219.38-1,878.28

Finding the Fourth Proportional to 3,059.32, 4,219.38 and 1,878.28

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Solution

The fourth proportional to 3,059.32, 4,219.38 and 1,878.28 is: 2,590.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,059.32 : 4,219.38 = 1,878.28 : x
  2. Step 2: Convert to fraction form
    3,059.32/4,219.38 = 1,878.28/x
  3. Step 3: Cross multiply
    3,059.32x = 4,219.38 × 1,878.28
  4. Step 4: Simplify right side
    3,059.32x = 7,925,177.07
  5. Step 5: Solve for x
    x = 7,925,177.07/3,059.32
  6. Step 6: Final answer
    x = 2,590.50

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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.