Home / 2,857.10-4,285.65-1,763.60

Finding the Fourth Proportional to 2,857.10, 4,285.65 and 1,763.60

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Solution

The fourth proportional to 2,857.10, 4,285.65 and 1,763.60 is: 2,645.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.10 : 4,285.65 = 1,763.60 : x
  2. Step 2: Convert to fraction form
    2,857.10/4,285.65 = 1,763.60/x
  3. Step 3: Cross multiply
    2,857.10x = 4,285.65 × 1,763.60
  4. Step 4: Simplify right side
    2,857.10x = 7,558,172.34
  5. Step 5: Solve for x
    x = 7,558,172.34/2,857.10
  6. Step 6: Final answer
    x = 2,645.40

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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.