Home / 3,531.15-4,870.90-2,271.80

Finding the Fourth Proportional to 3,531.15, 4,870.90 and 2,271.80

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Solution

The fourth proportional to 3,531.15, 4,870.90 and 2,271.80 is: 3,133.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.15 : 4,870.90 = 2,271.80 : x
  2. Step 2: Convert to fraction form
    3,531.15/4,870.90 = 2,271.80/x
  3. Step 3: Cross multiply
    3,531.15x = 4,870.90 × 2,271.80
  4. Step 4: Simplify right side
    3,531.15x = 11,065,725.64
  5. Step 5: Solve for x
    x = 11,065,725.64/3,531.15
  6. Step 6: Final answer
    x = 3,133.75

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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.