Home / 2,878.42-3,966.69-2,048.98

Finding the Fourth Proportional to 2,878.42, 3,966.69 and 2,048.98

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Solution

The fourth proportional to 2,878.42, 3,966.69 and 2,048.98 is: 2,823.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.42 : 3,966.69 = 2,048.98 : x
  2. Step 2: Convert to fraction form
    2,878.42/3,966.69 = 2,048.98/x
  3. Step 3: Cross multiply
    2,878.42x = 3,966.69 × 2,048.98
  4. Step 4: Simplify right side
    2,878.42x = 8,127,668.48
  5. Step 5: Solve for x
    x = 8,127,668.48/2,878.42
  6. Step 6: Final answer
    x = 2,823.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.