Home / 2,435.18-3,360.38-1,387.22

Finding the Fourth Proportional to 2,435.18, 3,360.38 and 1,387.22

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Solution

The fourth proportional to 2,435.18, 3,360.38 and 1,387.22 is: 1,914.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,435.18 : 3,360.38 = 1,387.22 : x
  2. Step 2: Convert to fraction form
    2,435.18/3,360.38 = 1,387.22/x
  3. Step 3: Cross multiply
    2,435.18x = 3,360.38 × 1,387.22
  4. Step 4: Simplify right side
    2,435.18x = 4,661,586.34
  5. Step 5: Solve for x
    x = 4,661,586.34/2,435.18
  6. Step 6: Final answer
    x = 1,914.27

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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.