Home / 2,877.98-4,308.54-2,187.40

Finding the Fourth Proportional to 2,877.98, 4,308.54 and 2,187.40

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Solution

The fourth proportional to 2,877.98, 4,308.54 and 2,187.40 is: 3,274.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.98 : 4,308.54 = 2,187.40 : x
  2. Step 2: Convert to fraction form
    2,877.98/4,308.54 = 2,187.40/x
  3. Step 3: Cross multiply
    2,877.98x = 4,308.54 × 2,187.40
  4. Step 4: Simplify right side
    2,877.98x = 9,424,500.40
  5. Step 5: Solve for x
    x = 9,424,500.40/2,877.98
  6. Step 6: Final answer
    x = 3,274.69

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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.