Home / 7,528.81-11,290.84-3,145.36

Finding the Fourth Proportional to 7,528.81, 11,290.84 and 3,145.36

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Solution

The fourth proportional to 7,528.81, 11,290.84 and 3,145.36 is: 4,717.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528.81 : 11,290.84 = 3,145.36 : x
  2. Step 2: Convert to fraction form
    7,528.81/11,290.84 = 3,145.36/x
  3. Step 3: Cross multiply
    7,528.81x = 11,290.84 × 3,145.36
  4. Step 4: Simplify right side
    7,528.81x = 35,513,756.50
  5. Step 5: Solve for x
    x = 35,513,756.50/7,528.81
  6. Step 6: Final answer
    x = 4,717.05

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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.