Home / 2,630.40-3,627.68-1,876.74

Finding the Fourth Proportional to 2,630.40, 3,627.68 and 1,876.74

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Solution

The fourth proportional to 2,630.40, 3,627.68 and 1,876.74 is: 2,588.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.40 : 3,627.68 = 1,876.74 : x
  2. Step 2: Convert to fraction form
    2,630.40/3,627.68 = 1,876.74/x
  3. Step 3: Cross multiply
    2,630.40x = 3,627.68 × 1,876.74
  4. Step 4: Simplify right side
    2,630.40x = 6,808,212.16
  5. Step 5: Solve for x
    x = 6,808,212.16/2,630.40
  6. Step 6: Final answer
    x = 2,588.28

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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.