Home / 7,589.36-11,389.80-2,972.72

Finding the Fourth Proportional to 7,589.36, 11,389.80 and 2,972.72

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Solution

The fourth proportional to 7,589.36, 11,389.80 and 2,972.72 is: 4,461.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,589.36 : 11,389.80 = 2,972.72 : x
  2. Step 2: Convert to fraction form
    7,589.36/11,389.80 = 2,972.72/x
  3. Step 3: Cross multiply
    7,589.36x = 11,389.80 × 2,972.72
  4. Step 4: Simplify right side
    7,589.36x = 33,858,686.26
  5. Step 5: Solve for x
    x = 33,858,686.26/7,589.36
  6. Step 6: Final answer
    x = 4,461.34

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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.