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Finding the Fourth Proportional to 6,878.84, 9,483.09 and 4,888.67

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Solution

The fourth proportional to 6,878.84, 9,483.09 and 4,888.67 is: 6,739.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,878.84 : 9,483.09 = 4,888.67 : x
  2. Step 2: Convert to fraction form
    6,878.84/9,483.09 = 4,888.67/x
  3. Step 3: Cross multiply
    6,878.84x = 9,483.09 × 4,888.67
  4. Step 4: Simplify right side
    6,878.84x = 46,359,650.17
  5. Step 5: Solve for x
    x = 46,359,650.17/6,878.84
  6. Step 6: Final answer
    x = 6,739.46

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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.