Home / 2,435.34-3,360.90-1,387.40

Finding the Fourth Proportional to 2,435.34, 3,360.90 and 1,387.40

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Solution

The fourth proportional to 2,435.34, 3,360.90 and 1,387.40 is: 1,914.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,435.34 : 3,360.90 = 1,387.40 : x
  2. Step 2: Convert to fraction form
    2,435.34/3,360.90 = 1,387.40/x
  3. Step 3: Cross multiply
    2,435.34x = 3,360.90 × 1,387.40
  4. Step 4: Simplify right side
    2,435.34x = 4,662,912.66
  5. Step 5: Solve for x
    x = 4,662,912.66/2,435.34
  6. Step 6: Final answer
    x = 1,914.69

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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.