Home / 5,430.23-8,145.93-1,731.15

Finding the Fourth Proportional to 5,430.23, 8,145.93 and 1,731.15

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Solution

The fourth proportional to 5,430.23, 8,145.93 and 1,731.15 is: 2,596.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.23 : 8,145.93 = 1,731.15 : x
  2. Step 2: Convert to fraction form
    5,430.23/8,145.93 = 1,731.15/x
  3. Step 3: Cross multiply
    5,430.23x = 8,145.93 × 1,731.15
  4. Step 4: Simplify right side
    5,430.23x = 14,101,826.72
  5. Step 5: Solve for x
    x = 14,101,826.72/5,430.23
  6. Step 6: Final answer
    x = 2,596.91

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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.