Home / 6,970.56-9,619.15-3,783.70

Finding the Fourth Proportional to 6,970.56, 9,619.15 and 3,783.70

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Solution

The fourth proportional to 6,970.56, 9,619.15 and 3,783.70 is: 5,221.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,970.56 : 9,619.15 = 3,783.70 : x
  2. Step 2: Convert to fraction form
    6,970.56/9,619.15 = 3,783.70/x
  3. Step 3: Cross multiply
    6,970.56x = 9,619.15 × 3,783.70
  4. Step 4: Simplify right side
    6,970.56x = 36,395,977.86
  5. Step 5: Solve for x
    x = 36,395,977.86/6,970.56
  6. Step 6: Final answer
    x = 5,221.39

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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.