Home / 2,039.61-2,814.65-1,155.49

Finding the Fourth Proportional to 2,039.61, 2,814.65 and 1,155.49

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Solution

The fourth proportional to 2,039.61, 2,814.65 and 1,155.49 is: 1,594.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.61 : 2,814.65 = 1,155.49 : x
  2. Step 2: Convert to fraction form
    2,039.61/2,814.65 = 1,155.49/x
  3. Step 3: Cross multiply
    2,039.61x = 2,814.65 × 1,155.49
  4. Step 4: Simplify right side
    2,039.61x = 3,252,299.93
  5. Step 5: Solve for x
    x = 3,252,299.93/2,039.61
  6. Step 6: Final answer
    x = 1,594.57

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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.