Home / 3,852.94-5,315.35-2,280.13

Finding the Fourth Proportional to 3,852.94, 5,315.35 and 2,280.13

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Solution

The fourth proportional to 3,852.94, 5,315.35 and 2,280.13 is: 3,145.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,852.94 : 5,315.35 = 2,280.13 : x
  2. Step 2: Convert to fraction form
    3,852.94/5,315.35 = 2,280.13/x
  3. Step 3: Cross multiply
    3,852.94x = 5,315.35 × 2,280.13
  4. Step 4: Simplify right side
    3,852.94x = 12,119,689.00
  5. Step 5: Solve for x
    x = 12,119,689.00/3,852.94
  6. Step 6: Final answer
    x = 3,145.57

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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.