Home / 1,970.19-2,942.49-1,674.57

Finding the Fourth Proportional to 1,970.19, 2,942.49 and 1,674.57

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Solution

The fourth proportional to 1,970.19, 2,942.49 and 1,674.57 is: 2,500.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970.19 : 2,942.49 = 1,674.57 : x
  2. Step 2: Convert to fraction form
    1,970.19/2,942.49 = 1,674.57/x
  3. Step 3: Cross multiply
    1,970.19x = 2,942.49 × 1,674.57
  4. Step 4: Simplify right side
    1,970.19x = 4,927,422.79
  5. Step 5: Solve for x
    x = 4,927,422.79/1,970.19
  6. Step 6: Final answer
    x = 2,500.99

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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.