Home / 1,931.16-2,664.98-1,091.85

Finding the Fourth Proportional to 1,931.16, 2,664.98 and 1,091.85

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Solution

The fourth proportional to 1,931.16, 2,664.98 and 1,091.85 is: 1,506.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.16 : 2,664.98 = 1,091.85 : x
  2. Step 2: Convert to fraction form
    1,931.16/2,664.98 = 1,091.85/x
  3. Step 3: Cross multiply
    1,931.16x = 2,664.98 × 1,091.85
  4. Step 4: Simplify right side
    1,931.16x = 2,909,747.05
  5. Step 5: Solve for x
    x = 2,909,747.05/1,931.16
  6. Step 6: Final answer
    x = 1,506.73

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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.