Home / 2,403.42-3,316.32-1,408.61

Finding the Fourth Proportional to 2,403.42, 3,316.32 and 1,408.61

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Solution

The fourth proportional to 2,403.42, 3,316.32 and 1,408.61 is: 1,943.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.42 : 3,316.32 = 1,408.61 : x
  2. Step 2: Convert to fraction form
    2,403.42/3,316.32 = 1,408.61/x
  3. Step 3: Cross multiply
    2,403.42x = 3,316.32 × 1,408.61
  4. Step 4: Simplify right side
    2,403.42x = 4,671,384.93
  5. Step 5: Solve for x
    x = 4,671,384.93/2,403.42
  6. Step 6: Final answer
    x = 1,943.64

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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.