Home / 3,386.15-5,071.31-2,928.95

Finding the Fourth Proportional to 3,386.15, 5,071.31 and 2,928.95

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Solution

The fourth proportional to 3,386.15, 5,071.31 and 2,928.95 is: 4,386.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.15 : 5,071.31 = 2,928.95 : x
  2. Step 2: Convert to fraction form
    3,386.15/5,071.31 = 2,928.95/x
  3. Step 3: Cross multiply
    3,386.15x = 5,071.31 × 2,928.95
  4. Step 4: Simplify right side
    3,386.15x = 14,853,598.78
  5. Step 5: Solve for x
    x = 14,853,598.78/3,386.15
  6. Step 6: Final answer
    x = 4,386.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.