Home / 5,878.23-8,811.81-1,979.91

Finding the Fourth Proportional to 5,878.23, 8,811.81 and 1,979.91

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Solution

The fourth proportional to 5,878.23, 8,811.81 and 1,979.91 is: 2,968.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.23 : 8,811.81 = 1,979.91 : x
  2. Step 2: Convert to fraction form
    5,878.23/8,811.81 = 1,979.91/x
  3. Step 3: Cross multiply
    5,878.23x = 8,811.81 × 1,979.91
  4. Step 4: Simplify right side
    5,878.23x = 17,446,590.74
  5. Step 5: Solve for x
    x = 17,446,590.74/5,878.23
  6. Step 6: Final answer
    x = 2,968.00

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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.