Home / 7,707.20-11,561.16-3,762.08

Finding the Fourth Proportional to 7,707.20, 11,561.16 and 3,762.08

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Solution

The fourth proportional to 7,707.20, 11,561.16 and 3,762.08 is: 5,643.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,707.20 : 11,561.16 = 3,762.08 : x
  2. Step 2: Convert to fraction form
    7,707.20/11,561.16 = 3,762.08/x
  3. Step 3: Cross multiply
    7,707.20x = 11,561.16 × 3,762.08
  4. Step 4: Simplify right side
    7,707.20x = 43,494,008.81
  5. Step 5: Solve for x
    x = 43,494,008.81/7,707.20
  6. Step 6: Final answer
    x = 5,643.30

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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.