Home / 2,985.36-4,446.96-2,878.44

Finding the Fourth Proportional to 2,985.36, 4,446.96 and 2,878.44

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Solution

The fourth proportional to 2,985.36, 4,446.96 and 2,878.44 is: 4,287.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.36 : 4,446.96 = 2,878.44 : x
  2. Step 2: Convert to fraction form
    2,985.36/4,446.96 = 2,878.44/x
  3. Step 3: Cross multiply
    2,985.36x = 4,446.96 × 2,878.44
  4. Step 4: Simplify right side
    2,985.36x = 12,800,307.54
  5. Step 5: Solve for x
    x = 12,800,307.54/2,985.36
  6. Step 6: Final answer
    x = 4,287.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.