Home / 1,477.26-2,038.72-847.79

Finding the Fourth Proportional to 1,477.26, 2,038.72 and 847.79

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Solution

The fourth proportional to 1,477.26, 2,038.72 and 847.79 is: 1,170.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477.26 : 2,038.72 = 847.79 : x
  2. Step 2: Convert to fraction form
    1,477.26/2,038.72 = 847.79/x
  3. Step 3: Cross multiply
    1,477.26x = 2,038.72 × 847.79
  4. Step 4: Simplify right side
    1,477.26x = 1,728,396.24
  5. Step 5: Solve for x
    x = 1,728,396.24/1,477.26
  6. Step 6: Final answer
    x = 1,170.01

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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.