Home / 2,103.16-2,903.40-1,317.64

Finding the Fourth Proportional to 2,103.16, 2,903.40 and 1,317.64

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Solution

The fourth proportional to 2,103.16, 2,903.40 and 1,317.64 is: 1,818.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103.16 : 2,903.40 = 1,317.64 : x
  2. Step 2: Convert to fraction form
    2,103.16/2,903.40 = 1,317.64/x
  3. Step 3: Cross multiply
    2,103.16x = 2,903.40 × 1,317.64
  4. Step 4: Simplify right side
    2,103.16x = 3,825,635.98
  5. Step 5: Solve for x
    x = 3,825,635.98/2,103.16
  6. Step 6: Final answer
    x = 1,818.99

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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.