Home / 2,403.04-3,315.68-1,408.28

Finding the Fourth Proportional to 2,403.04, 3,315.68 and 1,408.28

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Solution

The fourth proportional to 2,403.04, 3,315.68 and 1,408.28 is: 1,943.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.04 : 3,315.68 = 1,408.28 : x
  2. Step 2: Convert to fraction form
    2,403.04/3,315.68 = 1,408.28/x
  3. Step 3: Cross multiply
    2,403.04x = 3,315.68 × 1,408.28
  4. Step 4: Simplify right side
    2,403.04x = 4,669,405.83
  5. Step 5: Solve for x
    x = 4,669,405.83/2,403.04
  6. Step 6: Final answer
    x = 1,943.12

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1.5x scale

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.