Home / 2,038.38-2,811.95-1,409.55

Finding the Fourth Proportional to 2,038.38, 2,811.95 and 1,409.55

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Solution

The fourth proportional to 2,038.38, 2,811.95 and 1,409.55 is: 1,944.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,038.38 : 2,811.95 = 1,409.55 : x
  2. Step 2: Convert to fraction form
    2,038.38/2,811.95 = 1,409.55/x
  3. Step 3: Cross multiply
    2,038.38x = 2,811.95 × 1,409.55
  4. Step 4: Simplify right side
    2,038.38x = 3,963,577.07
  5. Step 5: Solve for x
    x = 3,963,577.07/2,038.38
  6. Step 6: Final answer
    x = 1,944.47

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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.