Home / 1,784.20-2,462.20-1,038.66

Finding the Fourth Proportional to 1,784.20, 2,462.20 and 1,038.66

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Solution

The fourth proportional to 1,784.20, 2,462.20 and 1,038.66 is: 1,433.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784.20 : 2,462.20 = 1,038.66 : x
  2. Step 2: Convert to fraction form
    1,784.20/2,462.20 = 1,038.66/x
  3. Step 3: Cross multiply
    1,784.20x = 2,462.20 × 1,038.66
  4. Step 4: Simplify right side
    1,784.20x = 2,557,388.65
  5. Step 5: Solve for x
    x = 2,557,388.65/1,784.20
  6. Step 6: Final answer
    x = 1,433.35

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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.