Home / 4,979.80-7,460.70-2,898.10

Finding the Fourth Proportional to 4,979.80, 7,460.70 and 2,898.10

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Solution

The fourth proportional to 4,979.80, 7,460.70 and 2,898.10 is: 4,341.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.80 : 7,460.70 = 2,898.10 : x
  2. Step 2: Convert to fraction form
    4,979.80/7,460.70 = 2,898.10/x
  3. Step 3: Cross multiply
    4,979.80x = 7,460.70 × 2,898.10
  4. Step 4: Simplify right side
    4,979.80x = 21,621,854.67
  5. Step 5: Solve for x
    x = 21,621,854.67/4,979.80
  6. Step 6: Final answer
    x = 4,341.91

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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.