Home / 3,123.85-4,303.59-2,177.93

Finding the Fourth Proportional to 3,123.85, 4,303.59 and 2,177.93

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Solution

The fourth proportional to 3,123.85, 4,303.59 and 2,177.93 is: 3,000.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.85 : 4,303.59 = 2,177.93 : x
  2. Step 2: Convert to fraction form
    3,123.85/4,303.59 = 2,177.93/x
  3. Step 3: Cross multiply
    3,123.85x = 4,303.59 × 2,177.93
  4. Step 4: Simplify right side
    3,123.85x = 9,372,896.25
  5. Step 5: Solve for x
    x = 9,372,896.25/3,123.85
  6. Step 6: Final answer
    x = 3,000.43

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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.