Home / 1,715.78-2,367.77-929.83

Finding the Fourth Proportional to 1,715.78, 2,367.77 and 929.83

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Solution

The fourth proportional to 1,715.78, 2,367.77 and 929.83 is: 1,283.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.78 : 2,367.77 = 929.83 : x
  2. Step 2: Convert to fraction form
    1,715.78/2,367.77 = 929.83/x
  3. Step 3: Cross multiply
    1,715.78x = 2,367.77 × 929.83
  4. Step 4: Simplify right side
    1,715.78x = 2,201,611.74
  5. Step 5: Solve for x
    x = 2,201,611.74/1,715.78
  6. Step 6: Final answer
    x = 1,283.16

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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.