Home / 1,155.36-1,730.80-1,026.08

Finding the Fourth Proportional to 1,155.36, 1,730.80 and 1,026.08

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Solution

The fourth proportional to 1,155.36, 1,730.80 and 1,026.08 is: 1,537.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.36 : 1,730.80 = 1,026.08 : x
  2. Step 2: Convert to fraction form
    1,155.36/1,730.80 = 1,026.08/x
  3. Step 3: Cross multiply
    1,155.36x = 1,730.80 × 1,026.08
  4. Step 4: Simplify right side
    1,155.36x = 1,775,939.26
  5. Step 5: Solve for x
    x = 1,775,939.26/1,155.36
  6. Step 6: Final answer
    x = 1,537.13

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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.