Home / 2,215.30-3,059.85-1,624.90

Finding the Fourth Proportional to 2,215.30, 3,059.85 and 1,624.90

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Solution

The fourth proportional to 2,215.30, 3,059.85 and 1,624.90 is: 2,244.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.30 : 3,059.85 = 1,624.90 : x
  2. Step 2: Convert to fraction form
    2,215.30/3,059.85 = 1,624.90/x
  3. Step 3: Cross multiply
    2,215.30x = 3,059.85 × 1,624.90
  4. Step 4: Simplify right side
    2,215.30x = 4,971,950.27
  5. Step 5: Solve for x
    x = 4,971,950.27/2,215.30
  6. Step 6: Final answer
    x = 2,244.37

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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.