Home / 7,828.18-10,802.79-4,291.39

Finding the Fourth Proportional to 7,828.18, 10,802.79 and 4,291.39

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Solution

The fourth proportional to 7,828.18, 10,802.79 and 4,291.39 is: 5,922.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.18 : 10,802.79 = 4,291.39 : x
  2. Step 2: Convert to fraction form
    7,828.18/10,802.79 = 4,291.39/x
  3. Step 3: Cross multiply
    7,828.18x = 10,802.79 × 4,291.39
  4. Step 4: Simplify right side
    7,828.18x = 46,358,957.97
  5. Step 5: Solve for x
    x = 46,358,957.97/7,828.18
  6. Step 6: Final answer
    x = 5,922.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.