Home / 5,137.10-7,089.20-2,779.23

Finding the Fourth Proportional to 5,137.10, 7,089.20 and 2,779.23

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Solution

The fourth proportional to 5,137.10, 7,089.20 and 2,779.23 is: 3,835.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.10 : 7,089.20 = 2,779.23 : x
  2. Step 2: Convert to fraction form
    5,137.10/7,089.20 = 2,779.23/x
  3. Step 3: Cross multiply
    5,137.10x = 7,089.20 × 2,779.23
  4. Step 4: Simplify right side
    5,137.10x = 19,702,503.42
  5. Step 5: Solve for x
    x = 19,702,503.42/5,137.10
  6. Step 6: Final answer
    x = 3,835.34

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Half scale
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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.