Home / 2,630.60-3,619.05-2,557.70

Finding the Fourth Proportional to 2,630.60, 3,619.05 and 2,557.70

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Solution

The fourth proportional to 2,630.60, 3,619.05 and 2,557.70 is: 3,518.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.60 : 3,619.05 = 2,557.70 : x
  2. Step 2: Convert to fraction form
    2,630.60/3,619.05 = 2,557.70/x
  3. Step 3: Cross multiply
    2,630.60x = 3,619.05 × 2,557.70
  4. Step 4: Simplify right side
    2,630.60x = 9,256,444.19
  5. Step 5: Solve for x
    x = 9,256,444.19/2,630.60
  6. Step 6: Final answer
    x = 3,518.76

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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.