Home / 2,599.66-3,587.52-1,420.75

Finding the Fourth Proportional to 2,599.66, 3,587.52 and 1,420.75

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Solution

The fourth proportional to 2,599.66, 3,587.52 and 1,420.75 is: 1,960.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,599.66 : 3,587.52 = 1,420.75 : x
  2. Step 2: Convert to fraction form
    2,599.66/3,587.52 = 1,420.75/x
  3. Step 3: Cross multiply
    2,599.66x = 3,587.52 × 1,420.75
  4. Step 4: Simplify right side
    2,599.66x = 5,096,969.04
  5. Step 5: Solve for x
    x = 5,096,969.04/2,599.66
  6. Step 6: Final answer
    x = 1,960.63

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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.