Home / 5,417.19-8,123.76-2,130.75

Finding the Fourth Proportional to 5,417.19, 8,123.76 and 2,130.75

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Solution

The fourth proportional to 5,417.19, 8,123.76 and 2,130.75 is: 3,195.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.19 : 8,123.76 = 2,130.75 : x
  2. Step 2: Convert to fraction form
    5,417.19/8,123.76 = 2,130.75/x
  3. Step 3: Cross multiply
    5,417.19x = 8,123.76 × 2,130.75
  4. Step 4: Simplify right side
    5,417.19x = 17,309,701.62
  5. Step 5: Solve for x
    x = 17,309,701.62/5,417.19
  6. Step 6: Final answer
    x = 3,195.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.