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Finding the Fourth Proportional to 6,859.76, 10,290.01 and 1,929.01

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Solution

The fourth proportional to 6,859.76, 10,290.01 and 1,929.01 is: 2,893.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,859.76 : 10,290.01 = 1,929.01 : x
  2. Step 2: Convert to fraction form
    6,859.76/10,290.01 = 1,929.01/x
  3. Step 3: Cross multiply
    6,859.76x = 10,290.01 × 1,929.01
  4. Step 4: Simplify right side
    6,859.76x = 19,849,532.19
  5. Step 5: Solve for x
    x = 19,849,532.19/6,859.76
  6. Step 6: Final answer
    x = 2,893.62

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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.