Home / 6,561.81-9,055.40-3,729.11

Finding the Fourth Proportional to 6,561.81, 9,055.40 and 3,729.11

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Solution

The fourth proportional to 6,561.81, 9,055.40 and 3,729.11 is: 5,146.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,561.81 : 9,055.40 = 3,729.11 : x
  2. Step 2: Convert to fraction form
    6,561.81/9,055.40 = 3,729.11/x
  3. Step 3: Cross multiply
    6,561.81x = 9,055.40 × 3,729.11
  4. Step 4: Simplify right side
    6,561.81x = 33,768,518.77
  5. Step 5: Solve for x
    x = 33,768,518.77/6,561.81
  6. Step 6: Final answer
    x = 5,146.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.