Home / 1,720.09-2,373.75-934.17

Finding the Fourth Proportional to 1,720.09, 2,373.75 and 934.17

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Solution

The fourth proportional to 1,720.09, 2,373.75 and 934.17 is: 1,289.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.09 : 2,373.75 = 934.17 : x
  2. Step 2: Convert to fraction form
    1,720.09/2,373.75 = 934.17/x
  3. Step 3: Cross multiply
    1,720.09x = 2,373.75 × 934.17
  4. Step 4: Simplify right side
    1,720.09x = 2,217,486.04
  5. Step 5: Solve for x
    x = 2,217,486.04/1,720.09
  6. Step 6: Final answer
    x = 1,289.17

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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.