Home / 1,840.65-2,540.28-1,054.86

Finding the Fourth Proportional to 1,840.65, 2,540.28 and 1,054.86

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Solution

The fourth proportional to 1,840.65, 2,540.28 and 1,054.86 is: 1,455.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,840.65 : 2,540.28 = 1,054.86 : x
  2. Step 2: Convert to fraction form
    1,840.65/2,540.28 = 1,054.86/x
  3. Step 3: Cross multiply
    1,840.65x = 2,540.28 × 1,054.86
  4. Step 4: Simplify right side
    1,840.65x = 2,679,639.76
  5. Step 5: Solve for x
    x = 2,679,639.76/1,840.65
  6. Step 6: Final answer
    x = 1,455.81

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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.