Home / 1,904.40-2,853.90-1,406.93

Finding the Fourth Proportional to 1,904.40, 2,853.90 and 1,406.93

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Solution

The fourth proportional to 1,904.40, 2,853.90 and 1,406.93 is: 2,108.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,904.40 : 2,853.90 = 1,406.93 : x
  2. Step 2: Convert to fraction form
    1,904.40/2,853.90 = 1,406.93/x
  3. Step 3: Cross multiply
    1,904.40x = 2,853.90 × 1,406.93
  4. Step 4: Simplify right side
    1,904.40x = 4,015,237.53
  5. Step 5: Solve for x
    x = 4,015,237.53/1,904.40
  6. Step 6: Final answer
    x = 2,108.40

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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.