Home / 1,715.80-2,367.83-929.87

Finding the Fourth Proportional to 1,715.80, 2,367.83 and 929.87

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Solution

The fourth proportional to 1,715.80, 2,367.83 and 929.87 is: 1,283.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.80 : 2,367.83 = 929.87 : x
  2. Step 2: Convert to fraction form
    1,715.80/2,367.83 = 929.87/x
  3. Step 3: Cross multiply
    1,715.80x = 2,367.83 × 929.87
  4. Step 4: Simplify right side
    1,715.80x = 2,201,774.08
  5. Step 5: Solve for x
    x = 2,201,774.08/1,715.80
  6. Step 6: Final answer
    x = 1,283.23

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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.