Home / 5,329.20-7,339.10-5,214.72

Finding the Fourth Proportional to 5,329.20, 7,339.10 and 5,214.72

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Solution

The fourth proportional to 5,329.20, 7,339.10 and 5,214.72 is: 7,181.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.20 : 7,339.10 = 5,214.72 : x
  2. Step 2: Convert to fraction form
    5,329.20/7,339.10 = 5,214.72/x
  3. Step 3: Cross multiply
    5,329.20x = 7,339.10 × 5,214.72
  4. Step 4: Simplify right side
    5,329.20x = 38,271,325.48
  5. Step 5: Solve for x
    x = 38,271,325.48/5,329.20
  6. Step 6: Final answer
    x = 7,181.44

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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.