Home / 2,177.67-3,005.67-1,339.10

Finding the Fourth Proportional to 2,177.67, 3,005.67 and 1,339.10

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Solution

The fourth proportional to 2,177.67, 3,005.67 and 1,339.10 is: 1,848.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.67 : 3,005.67 = 1,339.10 : x
  2. Step 2: Convert to fraction form
    2,177.67/3,005.67 = 1,339.10/x
  3. Step 3: Cross multiply
    2,177.67x = 3,005.67 × 1,339.10
  4. Step 4: Simplify right side
    2,177.67x = 4,024,888.94
  5. Step 5: Solve for x
    x = 4,024,888.94/2,177.67
  6. Step 6: Final answer
    x = 1,848.26

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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.