Home / 2,681.20-3,700.09-1,562.79

Finding the Fourth Proportional to 2,681.20, 3,700.09 and 1,562.79

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Solution

The fourth proportional to 2,681.20, 3,700.09 and 1,562.79 is: 2,156.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.20 : 3,700.09 = 1,562.79 : x
  2. Step 2: Convert to fraction form
    2,681.20/3,700.09 = 1,562.79/x
  3. Step 3: Cross multiply
    2,681.20x = 3,700.09 × 1,562.79
  4. Step 4: Simplify right side
    2,681.20x = 5,782,463.65
  5. Step 5: Solve for x
    x = 5,782,463.65/2,681.20
  6. Step 6: Final answer
    x = 2,156.67

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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.