Home / 1,121.32-1,675.73-1,058.92

Finding the Fourth Proportional to 1,121.32, 1,675.73 and 1,058.92

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Solution

The fourth proportional to 1,121.32, 1,675.73 and 1,058.92 is: 1,582.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121.32 : 1,675.73 = 1,058.92 : x
  2. Step 2: Convert to fraction form
    1,121.32/1,675.73 = 1,058.92/x
  3. Step 3: Cross multiply
    1,121.32x = 1,675.73 × 1,058.92
  4. Step 4: Simplify right side
    1,121.32x = 1,774,464.01
  5. Step 5: Solve for x
    x = 1,774,464.01/1,121.32
  6. Step 6: Final answer
    x = 1,582.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.