Home / 1,440.39-2,155.07-1,050.51

Finding the Fourth Proportional to 1,440.39, 2,155.07 and 1,050.51

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Solution

The fourth proportional to 1,440.39, 2,155.07 and 1,050.51 is: 1,571.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.39 : 2,155.07 = 1,050.51 : x
  2. Step 2: Convert to fraction form
    1,440.39/2,155.07 = 1,050.51/x
  3. Step 3: Cross multiply
    1,440.39x = 2,155.07 × 1,050.51
  4. Step 4: Simplify right side
    1,440.39x = 2,263,933.29
  5. Step 5: Solve for x
    x = 2,263,933.29/1,440.39
  6. Step 6: Final answer
    x = 1,571.75

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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.