Home / 2,580.36-3,870.50-632.58

Finding the Fourth Proportional to 2,580.36, 3,870.50 and 632.58

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Solution

The fourth proportional to 2,580.36, 3,870.50 and 632.58 is: 948.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.36 : 3,870.50 = 632.58 : x
  2. Step 2: Convert to fraction form
    2,580.36/3,870.50 = 632.58/x
  3. Step 3: Cross multiply
    2,580.36x = 3,870.50 × 632.58
  4. Step 4: Simplify right side
    2,580.36x = 2,448,397.73
  5. Step 5: Solve for x
    x = 2,448,397.73/2,580.36
  6. Step 6: Final answer
    x = 948.86

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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.