Home / 6,859.40-9,466.20-4,209.50

Finding the Fourth Proportional to 6,859.40, 9,466.20 and 4,209.50

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Solution

The fourth proportional to 6,859.40, 9,466.20 and 4,209.50 is: 5,809.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,859.40 : 9,466.20 = 4,209.50 : x
  2. Step 2: Convert to fraction form
    6,859.40/9,466.20 = 4,209.50/x
  3. Step 3: Cross multiply
    6,859.40x = 9,466.20 × 4,209.50
  4. Step 4: Simplify right side
    6,859.40x = 39,847,968.90
  5. Step 5: Solve for x
    x = 39,847,968.90/6,859.40
  6. Step 6: Final answer
    x = 5,809.25

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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.