Home / 5,443.81-7,512.54-3,085.90

Finding the Fourth Proportional to 5,443.81, 7,512.54 and 3,085.90

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Solution

The fourth proportional to 5,443.81, 7,512.54 and 3,085.90 is: 4,258.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,443.81 : 7,512.54 = 3,085.90 : x
  2. Step 2: Convert to fraction form
    5,443.81/7,512.54 = 3,085.90/x
  3. Step 3: Cross multiply
    5,443.81x = 7,512.54 × 3,085.90
  4. Step 4: Simplify right side
    5,443.81x = 23,182,947.19
  5. Step 5: Solve for x
    x = 23,182,947.19/5,443.81
  6. Step 6: Final answer
    x = 4,258.59

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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.