Home / 5,431.83-8,139.54-4,038.63

Finding the Fourth Proportional to 5,431.83, 8,139.54 and 4,038.63

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Solution

The fourth proportional to 5,431.83, 8,139.54 and 4,038.63 is: 6,051.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.83 : 8,139.54 = 4,038.63 : x
  2. Step 2: Convert to fraction form
    5,431.83/8,139.54 = 4,038.63/x
  3. Step 3: Cross multiply
    5,431.83x = 8,139.54 × 4,038.63
  4. Step 4: Simplify right side
    5,431.83x = 32,872,590.43
  5. Step 5: Solve for x
    x = 32,872,590.43/5,431.83
  6. Step 6: Final answer
    x = 6,051.84

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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.