Home / 1,550.22-2,139.06-886.98

Finding the Fourth Proportional to 1,550.22, 2,139.06 and 886.98

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Solution

The fourth proportional to 1,550.22, 2,139.06 and 886.98 is: 1,223.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550.22 : 2,139.06 = 886.98 : x
  2. Step 2: Convert to fraction form
    1,550.22/2,139.06 = 886.98/x
  3. Step 3: Cross multiply
    1,550.22x = 2,139.06 × 886.98
  4. Step 4: Simplify right side
    1,550.22x = 1,897,303.44
  5. Step 5: Solve for x
    x = 1,897,303.44/1,550.22
  6. Step 6: Final answer
    x = 1,223.89

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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.