Home / 6,405.84-8,840.08-3,534.51

Finding the Fourth Proportional to 6,405.84, 8,840.08 and 3,534.51

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Solution

The fourth proportional to 6,405.84, 8,840.08 and 3,534.51 is: 4,877.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,405.84 : 8,840.08 = 3,534.51 : x
  2. Step 2: Convert to fraction form
    6,405.84/8,840.08 = 3,534.51/x
  3. Step 3: Cross multiply
    6,405.84x = 8,840.08 × 3,534.51
  4. Step 4: Simplify right side
    6,405.84x = 31,245,311.66
  5. Step 5: Solve for x
    x = 31,245,311.66/6,405.84
  6. Step 6: Final answer
    x = 4,877.63

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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.