Home / 1,715.36-2,367.18-929.39

Finding the Fourth Proportional to 1,715.36, 2,367.18 and 929.39

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Solution

The fourth proportional to 1,715.36, 2,367.18 and 929.39 is: 1,282.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.36 : 2,367.18 = 929.39 : x
  2. Step 2: Convert to fraction form
    1,715.36/2,367.18 = 929.39/x
  3. Step 3: Cross multiply
    1,715.36x = 2,367.18 × 929.39
  4. Step 4: Simplify right side
    1,715.36x = 2,200,021.58
  5. Step 5: Solve for x
    x = 2,200,021.58/1,715.36
  6. Step 6: Final answer
    x = 1,282.55

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1.5x scale

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.