Home / 3,085.40-4,258.14-1,758.84

Finding the Fourth Proportional to 3,085.40, 4,258.14 and 1,758.84

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Solution

The fourth proportional to 3,085.40, 4,258.14 and 1,758.84 is: 2,427.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.40 : 4,258.14 = 1,758.84 : x
  2. Step 2: Convert to fraction form
    3,085.40/4,258.14 = 1,758.84/x
  3. Step 3: Cross multiply
    3,085.40x = 4,258.14 × 1,758.84
  4. Step 4: Simplify right side
    3,085.40x = 7,489,386.96
  5. Step 5: Solve for x
    x = 7,489,386.96/3,085.40
  6. Step 6: Final answer
    x = 2,427.36

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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.