Home / 5,011.88-7,515.30-2,089.40

Finding the Fourth Proportional to 5,011.88, 7,515.30 and 2,089.40

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Solution

The fourth proportional to 5,011.88, 7,515.30 and 2,089.40 is: 3,133.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,011.88 : 7,515.30 = 2,089.40 : x
  2. Step 2: Convert to fraction form
    5,011.88/7,515.30 = 2,089.40/x
  3. Step 3: Cross multiply
    5,011.88x = 7,515.30 × 2,089.40
  4. Step 4: Simplify right side
    5,011.88x = 15,702,467.82
  5. Step 5: Solve for x
    x = 15,702,467.82/5,011.88
  6. Step 6: Final answer
    x = 3,133.05

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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.