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Finding the Fourth Proportional to 3,038.50, 4,558.19 and 957.80

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Solution

The fourth proportional to 3,038.50, 4,558.19 and 957.80 is: 1,436.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.50 : 4,558.19 = 957.80 : x
  2. Step 2: Convert to fraction form
    3,038.50/4,558.19 = 957.80/x
  3. Step 3: Cross multiply
    3,038.50x = 4,558.19 × 957.80
  4. Step 4: Simplify right side
    3,038.50x = 4,365,834.38
  5. Step 5: Solve for x
    x = 4,365,834.38/3,038.50
  6. Step 6: Final answer
    x = 1,436.84

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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.