Home / 2,857.38-4,285.26-1,470.28

Finding the Fourth Proportional to 2,857.38, 4,285.26 and 1,470.28

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Solution

The fourth proportional to 2,857.38, 4,285.26 and 1,470.28 is: 2,205.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.38 : 4,285.26 = 1,470.28 : x
  2. Step 2: Convert to fraction form
    2,857.38/4,285.26 = 1,470.28/x
  3. Step 3: Cross multiply
    2,857.38x = 4,285.26 × 1,470.28
  4. Step 4: Simplify right side
    2,857.38x = 6,300,532.07
  5. Step 5: Solve for x
    x = 6,300,532.07/2,857.38
  6. Step 6: Final answer
    x = 2,205.00

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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.