Home / 1,550.52-2,139.66-887.36

Finding the Fourth Proportional to 1,550.52, 2,139.66 and 887.36

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Solution

The fourth proportional to 1,550.52, 2,139.66 and 887.36 is: 1,224.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550.52 : 2,139.66 = 887.36 : x
  2. Step 2: Convert to fraction form
    1,550.52/2,139.66 = 887.36/x
  3. Step 3: Cross multiply
    1,550.52x = 2,139.66 × 887.36
  4. Step 4: Simplify right side
    1,550.52x = 1,898,638.00
  5. Step 5: Solve for x
    x = 1,898,638.00/1,550.52
  6. Step 6: Final answer
    x = 1,224.52

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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.