Home / 2,876.98-4,307.04-2,186.40

Finding the Fourth Proportional to 2,876.98, 4,307.04 and 2,186.40

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Solution

The fourth proportional to 2,876.98, 4,307.04 and 2,186.40 is: 3,273.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.98 : 4,307.04 = 2,186.40 : x
  2. Step 2: Convert to fraction form
    2,876.98/4,307.04 = 2,186.40/x
  3. Step 3: Cross multiply
    2,876.98x = 4,307.04 × 2,186.40
  4. Step 4: Simplify right side
    2,876.98x = 9,416,928.41
  5. Step 5: Solve for x
    x = 9,416,928.41/2,876.98
  6. Step 6: Final answer
    x = 3,273.20

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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.