Home / 6,440.60-8,890.14-3,787.88

Finding the Fourth Proportional to 6,440.60, 8,890.14 and 3,787.88

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Solution

The fourth proportional to 6,440.60, 8,890.14 and 3,787.88 is: 5,228.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.60 : 8,890.14 = 3,787.88 : x
  2. Step 2: Convert to fraction form
    6,440.60/8,890.14 = 3,787.88/x
  3. Step 3: Cross multiply
    6,440.60x = 8,890.14 × 3,787.88
  4. Step 4: Simplify right side
    6,440.60x = 33,674,783.50
  5. Step 5: Solve for x
    x = 33,674,783.50/6,440.60
  6. Step 6: Final answer
    x = 5,228.52

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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.