Home / 1,550.52-2,139.66-1,109.16

Finding the Fourth Proportional to 1,550.52, 2,139.66 and 1,109.16

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Solution

The fourth proportional to 1,550.52, 2,139.66 and 1,109.16 is: 1,530.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550.52 : 2,139.66 = 1,109.16 : x
  2. Step 2: Convert to fraction form
    1,550.52/2,139.66 = 1,109.16/x
  3. Step 3: Cross multiply
    1,550.52x = 2,139.66 × 1,109.16
  4. Step 4: Simplify right side
    1,550.52x = 2,373,225.29
  5. Step 5: Solve for x
    x = 2,373,225.29/1,550.52
  6. Step 6: Final answer
    x = 1,530.60

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1.5x scale

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.