Home / 7,698.24-11,547.36-3,078

Finding the Fourth Proportional to 7,698.24, 11,547.36 and 3,078

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Solution

The fourth proportional to 7,698.24, 11,547.36 and 3,078 is: 4,617

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,698.24 : 11,547.36 = 3,078 : x
  2. Step 2: Convert to fraction form
    7,698.24/11,547.36 = 3,078/x
  3. Step 3: Cross multiply
    7,698.24x = 11,547.36 × 3,078
  4. Step 4: Simplify right side
    7,698.24x = 35,542,774.08
  5. Step 5: Solve for x
    x = 35,542,774.08/7,698.24
  6. Step 6: Final answer
    x = 4,617

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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.