Home / 6,893.12-9,510.36-3,908.72

Finding the Fourth Proportional to 6,893.12, 9,510.36 and 3,908.72

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Solution

The fourth proportional to 6,893.12, 9,510.36 and 3,908.72 is: 5,392.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,893.12 : 9,510.36 = 3,908.72 : x
  2. Step 2: Convert to fraction form
    6,893.12/9,510.36 = 3,908.72/x
  3. Step 3: Cross multiply
    6,893.12x = 9,510.36 × 3,908.72
  4. Step 4: Simplify right side
    6,893.12x = 37,173,334.34
  5. Step 5: Solve for x
    x = 37,173,334.34/6,893.12
  6. Step 6: Final answer
    x = 5,392.82

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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.