Home / 1,712.95-2,564.80-929.27

Finding the Fourth Proportional to 1,712.95, 2,564.80 and 929.27

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Solution

The fourth proportional to 1,712.95, 2,564.80 and 929.27 is: 1,391.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,712.95 : 2,564.80 = 929.27 : x
  2. Step 2: Convert to fraction form
    1,712.95/2,564.80 = 929.27/x
  3. Step 3: Cross multiply
    1,712.95x = 2,564.80 × 929.27
  4. Step 4: Simplify right side
    1,712.95x = 2,383,395.78
  5. Step 5: Solve for x
    x = 2,383,395.78/1,712.95
  6. Step 6: Final answer
    x = 1,391.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.