Home / 1,626.30-2,439.27-472.05

Finding the Fourth Proportional to 1,626.30, 2,439.27 and 472.05

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Solution

The fourth proportional to 1,626.30, 2,439.27 and 472.05 is: 708.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626.30 : 2,439.27 = 472.05 : x
  2. Step 2: Convert to fraction form
    1,626.30/2,439.27 = 472.05/x
  3. Step 3: Cross multiply
    1,626.30x = 2,439.27 × 472.05
  4. Step 4: Simplify right side
    1,626.30x = 1,151,457.40
  5. Step 5: Solve for x
    x = 1,151,457.40/1,626.30
  6. Step 6: Final answer
    x = 708.02

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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.