Home / 7,591.36-11,378.40-3,686.80

Finding the Fourth Proportional to 7,591.36, 11,378.40 and 3,686.80

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Solution

The fourth proportional to 7,591.36, 11,378.40 and 3,686.80 is: 5,526.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,591.36 : 11,378.40 = 3,686.80 : x
  2. Step 2: Convert to fraction form
    7,591.36/11,378.40 = 3,686.80/x
  3. Step 3: Cross multiply
    7,591.36x = 11,378.40 × 3,686.80
  4. Step 4: Simplify right side
    7,591.36x = 41,949,885.12
  5. Step 5: Solve for x
    x = 41,949,885.12/7,591.36
  6. Step 6: Final answer
    x = 5,526.00

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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.