Home / 2,927.88-4,392.23-1,285.20

Finding the Fourth Proportional to 2,927.88, 4,392.23 and 1,285.20

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Solution

The fourth proportional to 2,927.88, 4,392.23 and 1,285.20 is: 1,927.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.88 : 4,392.23 = 1,285.20 : x
  2. Step 2: Convert to fraction form
    2,927.88/4,392.23 = 1,285.20/x
  3. Step 3: Cross multiply
    2,927.88x = 4,392.23 × 1,285.20
  4. Step 4: Simplify right side
    2,927.88x = 5,644,887.57
  5. Step 5: Solve for x
    x = 5,644,887.57/2,927.88
  6. Step 6: Final answer
    x = 1,927.98

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1.5x scale

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.