Home / 1,929.04-2,660.43-1,340.98

Finding the Fourth Proportional to 1,929.04, 2,660.43 and 1,340.98

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Solution

The fourth proportional to 1,929.04, 2,660.43 and 1,340.98 is: 1,849.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.04 : 2,660.43 = 1,340.98 : x
  2. Step 2: Convert to fraction form
    1,929.04/2,660.43 = 1,340.98/x
  3. Step 3: Cross multiply
    1,929.04x = 2,660.43 × 1,340.98
  4. Step 4: Simplify right side
    1,929.04x = 3,567,583.42
  5. Step 5: Solve for x
    x = 3,567,583.42/1,929.04
  6. Step 6: Final answer
    x = 1,849.41

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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.