Home / 2,271.80-3,403.65-1,858.70

Finding the Fourth Proportional to 2,271.80, 3,403.65 and 1,858.70

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Solution

The fourth proportional to 2,271.80, 3,403.65 and 1,858.70 is: 2,784.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.80 : 3,403.65 = 1,858.70 : x
  2. Step 2: Convert to fraction form
    2,271.80/3,403.65 = 1,858.70/x
  3. Step 3: Cross multiply
    2,271.80x = 3,403.65 × 1,858.70
  4. Step 4: Simplify right side
    2,271.80x = 6,326,364.26
  5. Step 5: Solve for x
    x = 6,326,364.26/2,271.80
  6. Step 6: Final answer
    x = 2,784.74

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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.