Home / 7,828.16-10,802.88-4,291.44

Finding the Fourth Proportional to 7,828.16, 10,802.88 and 4,291.44

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Solution

The fourth proportional to 7,828.16, 10,802.88 and 4,291.44 is: 5,922.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.16 : 10,802.88 = 4,291.44 : x
  2. Step 2: Convert to fraction form
    7,828.16/10,802.88 = 4,291.44/x
  3. Step 3: Cross multiply
    7,828.16x = 10,802.88 × 4,291.44
  4. Step 4: Simplify right side
    7,828.16x = 46,359,911.35
  5. Step 5: Solve for x
    x = 46,359,911.35/7,828.16
  6. Step 6: Final answer
    x = 5,922.20

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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.