Home / 2,315.63-3,469.40-1,928.13

Finding the Fourth Proportional to 2,315.63, 3,469.40 and 1,928.13

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Solution

The fourth proportional to 2,315.63, 3,469.40 and 1,928.13 is: 2,888.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.63 : 3,469.40 = 1,928.13 : x
  2. Step 2: Convert to fraction form
    2,315.63/3,469.40 = 1,928.13/x
  3. Step 3: Cross multiply
    2,315.63x = 3,469.40 × 1,928.13
  4. Step 4: Simplify right side
    2,315.63x = 6,689,444.58
  5. Step 5: Solve for x
    x = 6,689,444.58/2,315.63
  6. Step 6: Final answer
    x = 2,888.83

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1.5x scale

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.