Home / 5,317.20-7,337.58-3,078.72

Finding the Fourth Proportional to 5,317.20, 7,337.58 and 3,078.72

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Solution

The fourth proportional to 5,317.20, 7,337.58 and 3,078.72 is: 4,248.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.20 : 7,337.58 = 3,078.72 : x
  2. Step 2: Convert to fraction form
    5,317.20/7,337.58 = 3,078.72/x
  3. Step 3: Cross multiply
    5,317.20x = 7,337.58 × 3,078.72
  4. Step 4: Simplify right side
    5,317.20x = 22,590,354.30
  5. Step 5: Solve for x
    x = 22,590,354.30/5,317.20
  6. Step 6: Final answer
    x = 4,248.54

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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.