Home / 2,812.34-3,880.77-1,762.58

Finding the Fourth Proportional to 2,812.34, 3,880.77 and 1,762.58

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Solution

The fourth proportional to 2,812.34, 3,880.77 and 1,762.58 is: 2,432.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.34 : 3,880.77 = 1,762.58 : x
  2. Step 2: Convert to fraction form
    2,812.34/3,880.77 = 1,762.58/x
  3. Step 3: Cross multiply
    2,812.34x = 3,880.77 × 1,762.58
  4. Step 4: Simplify right side
    2,812.34x = 6,840,167.59
  5. Step 5: Solve for x
    x = 6,840,167.59/2,812.34
  6. Step 6: Final answer
    x = 2,432.20

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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.