Home / 1,408.64-2,102-1,263.36

Finding the Fourth Proportional to 1,408.64, 2,102 and 1,263.36

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Solution

The fourth proportional to 1,408.64, 2,102 and 1,263.36 is: 1,885.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408.64 : 2,102 = 1,263.36 : x
  2. Step 2: Convert to fraction form
    1,408.64/2,102 = 1,263.36/x
  3. Step 3: Cross multiply
    1,408.64x = 2,102 × 1,263.36
  4. Step 4: Simplify right side
    1,408.64x = 2,655,582.72
  5. Step 5: Solve for x
    x = 2,655,582.72/1,408.64
  6. Step 6: Final answer
    x = 1,885.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.