Home / 2,619.10-3,927.30-974.80

Finding the Fourth Proportional to 2,619.10, 3,927.30 and 974.80

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Solution

The fourth proportional to 2,619.10, 3,927.30 and 974.80 is: 1,461.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.10 : 3,927.30 = 974.80 : x
  2. Step 2: Convert to fraction form
    2,619.10/3,927.30 = 974.80/x
  3. Step 3: Cross multiply
    2,619.10x = 3,927.30 × 974.80
  4. Step 4: Simplify right side
    2,619.10x = 3,828,332.04
  5. Step 5: Solve for x
    x = 3,828,332.04/2,619.10
  6. Step 6: Final answer
    x = 1,461.70

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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.