Home / 7,389.64-11,077.12-2,455.92

Finding the Fourth Proportional to 7,389.64, 11,077.12 and 2,455.92

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Solution

The fourth proportional to 7,389.64, 11,077.12 and 2,455.92 is: 3,681.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,389.64 : 11,077.12 = 2,455.92 : x
  2. Step 2: Convert to fraction form
    7,389.64/11,077.12 = 2,455.92/x
  3. Step 3: Cross multiply
    7,389.64x = 11,077.12 × 2,455.92
  4. Step 4: Simplify right side
    7,389.64x = 27,204,520.55
  5. Step 5: Solve for x
    x = 27,204,520.55/7,389.64
  6. Step 6: Final answer
    x = 3,681.44

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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.