Home / 5,277.07-7,917.63-2,159.20

Finding the Fourth Proportional to 5,277.07, 7,917.63 and 2,159.20

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Solution

The fourth proportional to 5,277.07, 7,917.63 and 2,159.20 is: 3,239.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,277.07 : 7,917.63 = 2,159.20 : x
  2. Step 2: Convert to fraction form
    5,277.07/7,917.63 = 2,159.20/x
  3. Step 3: Cross multiply
    5,277.07x = 7,917.63 × 2,159.20
  4. Step 4: Simplify right side
    5,277.07x = 17,095,746.70
  5. Step 5: Solve for x
    x = 17,095,746.70/5,277.07
  6. Step 6: Final answer
    x = 3,239.63

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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.