Home / 1,720.36-2,371.14-1,248.52

Finding the Fourth Proportional to 1,720.36, 2,371.14 and 1,248.52

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Solution

The fourth proportional to 1,720.36, 2,371.14 and 1,248.52 is: 1,720.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.36 : 2,371.14 = 1,248.52 : x
  2. Step 2: Convert to fraction form
    1,720.36/2,371.14 = 1,248.52/x
  3. Step 3: Cross multiply
    1,720.36x = 2,371.14 × 1,248.52
  4. Step 4: Simplify right side
    1,720.36x = 2,960,415.71
  5. Step 5: Solve for x
    x = 2,960,415.71/1,720.36
  6. Step 6: Final answer
    x = 1,720.81

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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.