Home / 5,178.48-7,148.36-3,607.44

Finding the Fourth Proportional to 5,178.48, 7,148.36 and 3,607.44

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Solution

The fourth proportional to 5,178.48, 7,148.36 and 3,607.44 is: 4,979.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.48 : 7,148.36 = 3,607.44 : x
  2. Step 2: Convert to fraction form
    5,178.48/7,148.36 = 3,607.44/x
  3. Step 3: Cross multiply
    5,178.48x = 7,148.36 × 3,607.44
  4. Step 4: Simplify right side
    5,178.48x = 25,787,279.80
  5. Step 5: Solve for x
    x = 25,787,279.80/5,178.48
  6. Step 6: Final answer
    x = 4,979.70

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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.