Home / 1,715.28-2,359.08-1,383

Finding the Fourth Proportional to 1,715.28, 2,359.08 and 1,383

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Solution

The fourth proportional to 1,715.28, 2,359.08 and 1,383 is: 1,902.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.28 : 2,359.08 = 1,383 : x
  2. Step 2: Convert to fraction form
    1,715.28/2,359.08 = 1,383/x
  3. Step 3: Cross multiply
    1,715.28x = 2,359.08 × 1,383
  4. Step 4: Simplify right side
    1,715.28x = 3,262,607.64
  5. Step 5: Solve for x
    x = 3,262,607.64/1,715.28
  6. Step 6: Final answer
    x = 1,902.08

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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.