Home / 6,436.80-8,880.84-4,680.72

Finding the Fourth Proportional to 6,436.80, 8,880.84 and 4,680.72

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Solution

The fourth proportional to 6,436.80, 8,880.84 and 4,680.72 is: 6,457.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,436.80 : 8,880.84 = 4,680.72 : x
  2. Step 2: Convert to fraction form
    6,436.80/8,880.84 = 4,680.72/x
  3. Step 3: Cross multiply
    6,436.80x = 8,880.84 × 4,680.72
  4. Step 4: Simplify right side
    6,436.80x = 41,568,725.40
  5. Step 5: Solve for x
    x = 41,568,725.40/6,436.80
  6. Step 6: Final answer
    x = 6,457.98

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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.