Home / 1,530.52-2,111.77-867.22

Finding the Fourth Proportional to 1,530.52, 2,111.77 and 867.22

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Solution

The fourth proportional to 1,530.52, 2,111.77 and 867.22 is: 1,196.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.52 : 2,111.77 = 867.22 : x
  2. Step 2: Convert to fraction form
    1,530.52/2,111.77 = 867.22/x
  3. Step 3: Cross multiply
    1,530.52x = 2,111.77 × 867.22
  4. Step 4: Simplify right side
    1,530.52x = 1,831,369.18
  5. Step 5: Solve for x
    x = 1,831,369.18/1,530.52
  6. Step 6: Final answer
    x = 1,196.57

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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.