Home / 3,120.22-4,304.55-1,877.50

Finding the Fourth Proportional to 3,120.22, 4,304.55 and 1,877.50

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Solution

The fourth proportional to 3,120.22, 4,304.55 and 1,877.50 is: 2,590.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.22 : 4,304.55 = 1,877.50 : x
  2. Step 2: Convert to fraction form
    3,120.22/4,304.55 = 1,877.50/x
  3. Step 3: Cross multiply
    3,120.22x = 4,304.55 × 1,877.50
  4. Step 4: Simplify right side
    3,120.22x = 8,081,792.63
  5. Step 5: Solve for x
    x = 8,081,792.63/3,120.22
  6. Step 6: Final answer
    x = 2,590.14

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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.