Home / 5,311.69-7,971.63-2,848.57

Finding the Fourth Proportional to 5,311.69, 7,971.63 and 2,848.57

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Solution

The fourth proportional to 5,311.69, 7,971.63 and 2,848.57 is: 4,275.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.69 : 7,971.63 = 2,848.57 : x
  2. Step 2: Convert to fraction form
    5,311.69/7,971.63 = 2,848.57/x
  3. Step 3: Cross multiply
    5,311.69x = 7,971.63 × 2,848.57
  4. Step 4: Simplify right side
    5,311.69x = 22,707,746.07
  5. Step 5: Solve for x
    x = 22,707,746.07/5,311.69
  6. Step 6: Final answer
    x = 4,275.05

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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.