Home / 2,403.46-3,316.65-1,408.90

Finding the Fourth Proportional to 2,403.46, 3,316.65 and 1,408.90

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Solution

The fourth proportional to 2,403.46, 3,316.65 and 1,408.90 is: 1,944.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.46 : 3,316.65 = 1,408.90 : x
  2. Step 2: Convert to fraction form
    2,403.46/3,316.65 = 1,408.90/x
  3. Step 3: Cross multiply
    2,403.46x = 3,316.65 × 1,408.90
  4. Step 4: Simplify right side
    2,403.46x = 4,672,828.19
  5. Step 5: Solve for x
    x = 4,672,828.19/2,403.46
  6. Step 6: Final answer
    x = 1,944.21

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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.