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Finding the Fourth Proportional to 2,580.49, 3,870.73 and 632.67

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Solution

The fourth proportional to 2,580.49, 3,870.73 and 632.67 is: 949.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.49 : 3,870.73 = 632.67 : x
  2. Step 2: Convert to fraction form
    2,580.49/3,870.73 = 632.67/x
  3. Step 3: Cross multiply
    2,580.49x = 3,870.73 × 632.67
  4. Step 4: Simplify right side
    2,580.49x = 2,448,910.06
  5. Step 5: Solve for x
    x = 2,448,910.06/2,580.49
  6. Step 6: Final answer
    x = 949.01

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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.