Home / 1,715.61-2,367.36-1,267.71

Finding the Fourth Proportional to 1,715.61, 2,367.36 and 1,267.71

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Solution

The fourth proportional to 1,715.61, 2,367.36 and 1,267.71 is: 1,749.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.61 : 2,367.36 = 1,267.71 : x
  2. Step 2: Convert to fraction form
    1,715.61/2,367.36 = 1,267.71/x
  3. Step 3: Cross multiply
    1,715.61x = 2,367.36 × 1,267.71
  4. Step 4: Simplify right side
    1,715.61x = 3,001,125.95
  5. Step 5: Solve for x
    x = 3,001,125.95/1,715.61
  6. Step 6: Final answer
    x = 1,749.31

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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.