Home / 2,620.40-3,616.92-1,834.72

Finding the Fourth Proportional to 2,620.40, 3,616.92 and 1,834.72

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Solution

The fourth proportional to 2,620.40, 3,616.92 and 1,834.72 is: 2,532.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.40 : 3,616.92 = 1,834.72 : x
  2. Step 2: Convert to fraction form
    2,620.40/3,616.92 = 1,834.72/x
  3. Step 3: Cross multiply
    2,620.40x = 3,616.92 × 1,834.72
  4. Step 4: Simplify right side
    2,620.40x = 6,636,035.46
  5. Step 5: Solve for x
    x = 6,636,035.46/2,620.40
  6. Step 6: Final answer
    x = 2,532.45

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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.