Home / 2,599.32-3,895.61-1,980.75

Finding the Fourth Proportional to 2,599.32, 3,895.61 and 1,980.75

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Solution

The fourth proportional to 2,599.32, 3,895.61 and 1,980.75 is: 2,968.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,599.32 : 3,895.61 = 1,980.75 : x
  2. Step 2: Convert to fraction form
    2,599.32/3,895.61 = 1,980.75/x
  3. Step 3: Cross multiply
    2,599.32x = 3,895.61 × 1,980.75
  4. Step 4: Simplify right side
    2,599.32x = 7,716,219.60
  5. Step 5: Solve for x
    x = 7,716,219.60/2,599.32
  6. Step 6: Final answer
    x = 2,968.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.