Home / 2,599.86-3,587.76-1,420.92

Finding the Fourth Proportional to 2,599.86, 3,587.76 and 1,420.92

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Solution

The fourth proportional to 2,599.86, 3,587.76 and 1,420.92 is: 1,960.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,599.86 : 3,587.76 = 1,420.92 : x
  2. Step 2: Convert to fraction form
    2,599.86/3,587.76 = 1,420.92/x
  3. Step 3: Cross multiply
    2,599.86x = 3,587.76 × 1,420.92
  4. Step 4: Simplify right side
    2,599.86x = 5,097,919.94
  5. Step 5: Solve for x
    x = 5,097,919.94/2,599.86
  6. Step 6: Final answer
    x = 1,960.84

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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.