Home / 1,671.24-2,305.59-1,007.71

Finding the Fourth Proportional to 1,671.24, 2,305.59 and 1,007.71

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Solution

The fourth proportional to 1,671.24, 2,305.59 and 1,007.71 is: 1,390.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,671.24 : 2,305.59 = 1,007.71 : x
  2. Step 2: Convert to fraction form
    1,671.24/2,305.59 = 1,007.71/x
  3. Step 3: Cross multiply
    1,671.24x = 2,305.59 × 1,007.71
  4. Step 4: Simplify right side
    1,671.24x = 2,323,366.10
  5. Step 5: Solve for x
    x = 2,323,366.10/1,671.24
  6. Step 6: Final answer
    x = 1,390.21

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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.