Home / 6,871.15-10,307.48-2,190.07

Finding the Fourth Proportional to 6,871.15, 10,307.48 and 2,190.07

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Solution

The fourth proportional to 6,871.15, 10,307.48 and 2,190.07 is: 3,285.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.15 : 10,307.48 = 2,190.07 : x
  2. Step 2: Convert to fraction form
    6,871.15/10,307.48 = 2,190.07/x
  3. Step 3: Cross multiply
    6,871.15x = 10,307.48 × 2,190.07
  4. Step 4: Simplify right side
    6,871.15x = 22,574,102.72
  5. Step 5: Solve for x
    x = 22,574,102.72/6,871.15
  6. Step 6: Final answer
    x = 3,285.35

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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.