Home / 2,456.75-3,390.58-1,512.35

Finding the Fourth Proportional to 2,456.75, 3,390.58 and 1,512.35

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Solution

The fourth proportional to 2,456.75, 3,390.58 and 1,512.35 is: 2,087.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.75 : 3,390.58 = 1,512.35 : x
  2. Step 2: Convert to fraction form
    2,456.75/3,390.58 = 1,512.35/x
  3. Step 3: Cross multiply
    2,456.75x = 3,390.58 × 1,512.35
  4. Step 4: Simplify right side
    2,456.75x = 5,127,741.32
  5. Step 5: Solve for x
    x = 5,127,741.32/2,456.75
  6. Step 6: Final answer
    x = 2,087.21

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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.