Home / 2,871.80-4,307.70-2,677.40

Finding the Fourth Proportional to 2,871.80, 4,307.70 and 2,677.40

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Solution

The fourth proportional to 2,871.80, 4,307.70 and 2,677.40 is: 4,016.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.80 : 4,307.70 = 2,677.40 : x
  2. Step 2: Convert to fraction form
    2,871.80/4,307.70 = 2,677.40/x
  3. Step 3: Cross multiply
    2,871.80x = 4,307.70 × 2,677.40
  4. Step 4: Simplify right side
    2,871.80x = 11,533,435.98
  5. Step 5: Solve for x
    x = 11,533,435.98/2,871.80
  6. Step 6: Final answer
    x = 4,016.10

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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.