Home / 1,730.12-2,592.72-865.04

Finding the Fourth Proportional to 1,730.12, 2,592.72 and 865.04

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Solution

The fourth proportional to 1,730.12, 2,592.72 and 865.04 is: 1,296.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,730.12 : 2,592.72 = 865.04 : x
  2. Step 2: Convert to fraction form
    1,730.12/2,592.72 = 865.04/x
  3. Step 3: Cross multiply
    1,730.12x = 2,592.72 × 865.04
  4. Step 4: Simplify right side
    1,730.12x = 2,242,806.51
  5. Step 5: Solve for x
    x = 2,242,806.51/1,730.12
  6. Step 6: Final answer
    x = 1,296.33

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1.5x scale

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.