Home / 1,408.29-2,113.05-1,303.80

Finding the Fourth Proportional to 1,408.29, 2,113.05 and 1,303.80

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Solution

The fourth proportional to 1,408.29, 2,113.05 and 1,303.80 is: 1,956.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408.29 : 2,113.05 = 1,303.80 : x
  2. Step 2: Convert to fraction form
    1,408.29/2,113.05 = 1,303.80/x
  3. Step 3: Cross multiply
    1,408.29x = 2,113.05 × 1,303.80
  4. Step 4: Simplify right side
    1,408.29x = 2,754,994.59
  5. Step 5: Solve for x
    x = 2,754,994.59/1,408.29
  6. Step 6: Final answer
    x = 1,956.27

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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.