Home / 4,778.07-7,162.78-1,699.35

Finding the Fourth Proportional to 4,778.07, 7,162.78 and 1,699.35

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Solution

The fourth proportional to 4,778.07, 7,162.78 and 1,699.35 is: 2,547.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.07 : 7,162.78 = 1,699.35 : x
  2. Step 2: Convert to fraction form
    4,778.07/7,162.78 = 1,699.35/x
  3. Step 3: Cross multiply
    4,778.07x = 7,162.78 × 1,699.35
  4. Step 4: Simplify right side
    4,778.07x = 12,172,042.27
  5. Step 5: Solve for x
    x = 12,172,042.27/4,778.07
  6. Step 6: Final answer
    x = 2,547.48

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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.