Home / 2,285.02-3,152.41-1,399.29

Finding the Fourth Proportional to 2,285.02, 3,152.41 and 1,399.29

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Solution

The fourth proportional to 2,285.02, 3,152.41 and 1,399.29 is: 1,930.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.02 : 3,152.41 = 1,399.29 : x
  2. Step 2: Convert to fraction form
    2,285.02/3,152.41 = 1,399.29/x
  3. Step 3: Cross multiply
    2,285.02x = 3,152.41 × 1,399.29
  4. Step 4: Simplify right side
    2,285.02x = 4,411,135.79
  5. Step 5: Solve for x
    x = 4,411,135.79/2,285.02
  6. Step 6: Final answer
    x = 1,930.46

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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.