Home / 4,890.70-7,316.85-4,429.90

Finding the Fourth Proportional to 4,890.70, 7,316.85 and 4,429.90

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Solution

The fourth proportional to 4,890.70, 7,316.85 and 4,429.90 is: 6,627.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.70 : 7,316.85 = 4,429.90 : x
  2. Step 2: Convert to fraction form
    4,890.70/7,316.85 = 4,429.90/x
  3. Step 3: Cross multiply
    4,890.70x = 7,316.85 × 4,429.90
  4. Step 4: Simplify right side
    4,890.70x = 32,412,913.82
  5. Step 5: Solve for x
    x = 32,412,913.82/4,890.70
  6. Step 6: Final answer
    x = 6,627.46

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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.