Home / 4,947-7,417.26-4,007.40

Finding the Fourth Proportional to 4,947, 7,417.26 and 4,007.40

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Solution

The fourth proportional to 4,947, 7,417.26 and 4,007.40 is: 6,008.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947 : 7,417.26 = 4,007.40 : x
  2. Step 2: Convert to fraction form
    4,947/7,417.26 = 4,007.40/x
  3. Step 3: Cross multiply
    4,947x = 7,417.26 × 4,007.40
  4. Step 4: Simplify right side
    4,947x = 29,723,927.72
  5. Step 5: Solve for x
    x = 29,723,927.72/4,947
  6. Step 6: Final answer
    x = 6,008.48

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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.