Home / 3,538.95-4,870.86-3,116.54

Finding the Fourth Proportional to 3,538.95, 4,870.86 and 3,116.54

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Solution

The fourth proportional to 3,538.95, 4,870.86 and 3,116.54 is: 4,289.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.95 : 4,870.86 = 3,116.54 : x
  2. Step 2: Convert to fraction form
    3,538.95/4,870.86 = 3,116.54/x
  3. Step 3: Cross multiply
    3,538.95x = 4,870.86 × 3,116.54
  4. Step 4: Simplify right side
    3,538.95x = 15,180,205.67
  5. Step 5: Solve for x
    x = 15,180,205.67/3,538.95
  6. Step 6: Final answer
    x = 4,289.47

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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.