Home / 1,927.90-2,660.79-1,632.70

Finding the Fourth Proportional to 1,927.90, 2,660.79 and 1,632.70

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Solution

The fourth proportional to 1,927.90, 2,660.79 and 1,632.70 is: 2,253.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.90 : 2,660.79 = 1,632.70 : x
  2. Step 2: Convert to fraction form
    1,927.90/2,660.79 = 1,632.70/x
  3. Step 3: Cross multiply
    1,927.90x = 2,660.79 × 1,632.70
  4. Step 4: Simplify right side
    1,927.90x = 4,344,271.83
  5. Step 5: Solve for x
    x = 4,344,271.83/1,927.90
  6. Step 6: Final answer
    x = 2,253.37

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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.