Home / 3,412.32-4,707.45-2,085.75

Finding the Fourth Proportional to 3,412.32, 4,707.45 and 2,085.75

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Solution

The fourth proportional to 3,412.32, 4,707.45 and 2,085.75 is: 2,877.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.32 : 4,707.45 = 2,085.75 : x
  2. Step 2: Convert to fraction form
    3,412.32/4,707.45 = 2,085.75/x
  3. Step 3: Cross multiply
    3,412.32x = 4,707.45 × 2,085.75
  4. Step 4: Simplify right side
    3,412.32x = 9,818,563.84
  5. Step 5: Solve for x
    x = 9,818,563.84/3,412.32
  6. Step 6: Final answer
    x = 2,877.39

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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.