Home / 2,599.60-3,587.24-1,420.68

Finding the Fourth Proportional to 2,599.60, 3,587.24 and 1,420.68

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Solution

The fourth proportional to 2,599.60, 3,587.24 and 1,420.68 is: 1,960.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,599.60 : 3,587.24 = 1,420.68 : x
  2. Step 2: Convert to fraction form
    2,599.60/3,587.24 = 1,420.68/x
  3. Step 3: Cross multiply
    2,599.60x = 3,587.24 × 1,420.68
  4. Step 4: Simplify right side
    2,599.60x = 5,096,320.12
  5. Step 5: Solve for x
    x = 5,096,320.12/2,599.60
  6. Step 6: Final answer
    x = 1,960.42

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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.