Home / 6,970.64-9,619.68-3,827.04

Finding the Fourth Proportional to 6,970.64, 9,619.68 and 3,827.04

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Solution

The fourth proportional to 6,970.64, 9,619.68 and 3,827.04 is: 5,281.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,970.64 : 9,619.68 = 3,827.04 : x
  2. Step 2: Convert to fraction form
    6,970.64/9,619.68 = 3,827.04/x
  3. Step 3: Cross multiply
    6,970.64x = 9,619.68 × 3,827.04
  4. Step 4: Simplify right side
    6,970.64x = 36,814,900.15
  5. Step 5: Solve for x
    x = 36,814,900.15/6,970.64
  6. Step 6: Final answer
    x = 5,281.42

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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.