Home / 6,312.94-8,712.06-3,480.45

Finding the Fourth Proportional to 6,312.94, 8,712.06 and 3,480.45

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Solution

The fourth proportional to 6,312.94, 8,712.06 and 3,480.45 is: 4,803.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,312.94 : 8,712.06 = 3,480.45 : x
  2. Step 2: Convert to fraction form
    6,312.94/8,712.06 = 3,480.45/x
  3. Step 3: Cross multiply
    6,312.94x = 8,712.06 × 3,480.45
  4. Step 4: Simplify right side
    6,312.94x = 30,321,889.23
  5. Step 5: Solve for x
    x = 30,321,889.23/6,312.94
  6. Step 6: Final answer
    x = 4,803.13

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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.