Home / 2,580.90-3,880.69-2,377.92

Finding the Fourth Proportional to 2,580.90, 3,880.69 and 2,377.92

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Solution

The fourth proportional to 2,580.90, 3,880.69 and 2,377.92 is: 3,575.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.90 : 3,880.69 = 2,377.92 : x
  2. Step 2: Convert to fraction form
    2,580.90/3,880.69 = 2,377.92/x
  3. Step 3: Cross multiply
    2,580.90x = 3,880.69 × 2,377.92
  4. Step 4: Simplify right side
    2,580.90x = 9,227,970.36
  5. Step 5: Solve for x
    x = 9,227,970.36/2,580.90
  6. Step 6: Final answer
    x = 3,575.49

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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.