Home / 8,880.30-13,315.79-2,639.45

Finding the Fourth Proportional to 8,880.30, 13,315.79 and 2,639.45

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Solution

The fourth proportional to 8,880.30, 13,315.79 and 2,639.45 is: 3,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.30 : 13,315.79 = 2,639.45 : x
  2. Step 2: Convert to fraction form
    8,880.30/13,315.79 = 2,639.45/x
  3. Step 3: Cross multiply
    8,880.30x = 13,315.79 × 2,639.45
  4. Step 4: Simplify right side
    8,880.30x = 35,146,401.80
  5. Step 5: Solve for x
    x = 35,146,401.80/8,880.30
  6. Step 6: Final answer
    x = 3,957.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.