Home / 4,318.50-6,478.70-1,396.77

Finding the Fourth Proportional to 4,318.50, 6,478.70 and 1,396.77

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Solution

The fourth proportional to 4,318.50, 6,478.70 and 1,396.77 is: 2,095.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,318.50 : 6,478.70 = 1,396.77 : x
  2. Step 2: Convert to fraction form
    4,318.50/6,478.70 = 1,396.77/x
  3. Step 3: Cross multiply
    4,318.50x = 6,478.70 × 1,396.77
  4. Step 4: Simplify right side
    4,318.50x = 9,049,253.80
  5. Step 5: Solve for x
    x = 9,049,253.80/4,318.50
  6. Step 6: Final answer
    x = 2,095.46

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1.5x scale

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.