Home / 1,391.04-2,083.20-1,184.40

Finding the Fourth Proportional to 1,391.04, 2,083.20 and 1,184.40

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Solution

The fourth proportional to 1,391.04, 2,083.20 and 1,184.40 is: 1,773.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391.04 : 2,083.20 = 1,184.40 : x
  2. Step 2: Convert to fraction form
    1,391.04/2,083.20 = 1,184.40/x
  3. Step 3: Cross multiply
    1,391.04x = 2,083.20 × 1,184.40
  4. Step 4: Simplify right side
    1,391.04x = 2,467,342.08
  5. Step 5: Solve for x
    x = 2,467,342.08/1,391.04
  6. Step 6: Final answer
    x = 1,773.74

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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.