Home / 4,905.10-7,357.47-1,618.10

Finding the Fourth Proportional to 4,905.10, 7,357.47 and 1,618.10

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Solution

The fourth proportional to 4,905.10, 7,357.47 and 1,618.10 is: 2,427.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.10 : 7,357.47 = 1,618.10 : x
  2. Step 2: Convert to fraction form
    4,905.10/7,357.47 = 1,618.10/x
  3. Step 3: Cross multiply
    4,905.10x = 7,357.47 × 1,618.10
  4. Step 4: Simplify right side
    4,905.10x = 11,905,122.21
  5. Step 5: Solve for x
    x = 11,905,122.21/4,905.10
  6. Step 6: Final answer
    x = 2,427.09

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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.