Home / 2,403.20-3,316.36-1,355.26

Finding the Fourth Proportional to 2,403.20, 3,316.36 and 1,355.26

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Solution

The fourth proportional to 2,403.20, 3,316.36 and 1,355.26 is: 1,870.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.20 : 3,316.36 = 1,355.26 : x
  2. Step 2: Convert to fraction form
    2,403.20/3,316.36 = 1,355.26/x
  3. Step 3: Cross multiply
    2,403.20x = 3,316.36 × 1,355.26
  4. Step 4: Simplify right side
    2,403.20x = 4,494,530.05
  5. Step 5: Solve for x
    x = 4,494,530.05/2,403.20
  6. Step 6: Final answer
    x = 1,870.23

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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.