Home / 6,864.85-9,473.15-3,880.10

Finding the Fourth Proportional to 6,864.85, 9,473.15 and 3,880.10

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Solution

The fourth proportional to 6,864.85, 9,473.15 and 3,880.10 is: 5,354.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,864.85 : 9,473.15 = 3,880.10 : x
  2. Step 2: Convert to fraction form
    6,864.85/9,473.15 = 3,880.10/x
  3. Step 3: Cross multiply
    6,864.85x = 9,473.15 × 3,880.10
  4. Step 4: Simplify right side
    6,864.85x = 36,756,721.95
  5. Step 5: Solve for x
    x = 36,756,721.95/6,864.85
  6. Step 6: Final answer
    x = 5,354.34

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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.