Home / 5,390.10-8,082.72-1,927.44

Finding the Fourth Proportional to 5,390.10, 8,082.72 and 1,927.44

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Solution

The fourth proportional to 5,390.10, 8,082.72 and 1,927.44 is: 2,890.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.10 : 8,082.72 = 1,927.44 : x
  2. Step 2: Convert to fraction form
    5,390.10/8,082.72 = 1,927.44/x
  3. Step 3: Cross multiply
    5,390.10x = 8,082.72 × 1,927.44
  4. Step 4: Simplify right side
    5,390.10x = 15,578,957.84
  5. Step 5: Solve for x
    x = 15,578,957.84/5,390.10
  6. Step 6: Final answer
    x = 2,890.29

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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.