Home / 2,285.16-3,146.31-1,948.47

Finding the Fourth Proportional to 2,285.16, 3,146.31 and 1,948.47

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Solution

The fourth proportional to 2,285.16, 3,146.31 and 1,948.47 is: 2,682.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.16 : 3,146.31 = 1,948.47 : x
  2. Step 2: Convert to fraction form
    2,285.16/3,146.31 = 1,948.47/x
  3. Step 3: Cross multiply
    2,285.16x = 3,146.31 × 1,948.47
  4. Step 4: Simplify right side
    2,285.16x = 6,130,490.65
  5. Step 5: Solve for x
    x = 6,130,490.65/2,285.16
  6. Step 6: Final answer
    x = 2,682.74

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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.