Home / 3,098.81-4,276.31-1,840.47

Finding the Fourth Proportional to 3,098.81, 4,276.31 and 1,840.47

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Solution

The fourth proportional to 3,098.81, 4,276.31 and 1,840.47 is: 2,539.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.81 : 4,276.31 = 1,840.47 : x
  2. Step 2: Convert to fraction form
    3,098.81/4,276.31 = 1,840.47/x
  3. Step 3: Cross multiply
    3,098.81x = 4,276.31 × 1,840.47
  4. Step 4: Simplify right side
    3,098.81x = 7,870,411.06
  5. Step 5: Solve for x
    x = 7,870,411.06/3,098.81
  6. Step 6: Final answer
    x = 2,539.82

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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.