Home / 6,678.90-10,015.61-2,978.59

Finding the Fourth Proportional to 6,678.90, 10,015.61 and 2,978.59

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Solution

The fourth proportional to 6,678.90, 10,015.61 and 2,978.59 is: 4,466.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,678.90 : 10,015.61 = 2,978.59 : x
  2. Step 2: Convert to fraction form
    6,678.90/10,015.61 = 2,978.59/x
  3. Step 3: Cross multiply
    6,678.90x = 10,015.61 × 2,978.59
  4. Step 4: Simplify right side
    6,678.90x = 29,832,395.79
  5. Step 5: Solve for x
    x = 29,832,395.79/6,678.90
  6. Step 6: Final answer
    x = 4,466.66

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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.