Home / 6,289.34-8,678.69-3,770.99

Finding the Fourth Proportional to 6,289.34, 8,678.69 and 3,770.99

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Solution

The fourth proportional to 6,289.34, 8,678.69 and 3,770.99 is: 5,203.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.34 : 8,678.69 = 3,770.99 : x
  2. Step 2: Convert to fraction form
    6,289.34/8,678.69 = 3,770.99/x
  3. Step 3: Cross multiply
    6,289.34x = 8,678.69 × 3,770.99
  4. Step 4: Simplify right side
    6,289.34x = 32,727,209.81
  5. Step 5: Solve for x
    x = 32,727,209.81/6,289.34
  6. Step 6: Final answer
    x = 5,203.60

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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.