Home / 1,155.12-1,583.75-1,134.32

Finding the Fourth Proportional to 1,155.12, 1,583.75 and 1,134.32

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Solution

The fourth proportional to 1,155.12, 1,583.75 and 1,134.32 is: 1,555.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.12 : 1,583.75 = 1,134.32 : x
  2. Step 2: Convert to fraction form
    1,155.12/1,583.75 = 1,134.32/x
  3. Step 3: Cross multiply
    1,155.12x = 1,583.75 × 1,134.32
  4. Step 4: Simplify right side
    1,155.12x = 1,796,465.71
  5. Step 5: Solve for x
    x = 1,796,465.71/1,155.12
  6. Step 6: Final answer
    x = 1,555.22

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.