Home / 2,599.62-3,587.49-1,420.70

Finding the Fourth Proportional to 2,599.62, 3,587.49 and 1,420.70

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Solution

The fourth proportional to 2,599.62, 3,587.49 and 1,420.70 is: 1,960.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,599.62 : 3,587.49 = 1,420.70 : x
  2. Step 2: Convert to fraction form
    2,599.62/3,587.49 = 1,420.70/x
  3. Step 3: Cross multiply
    2,599.62x = 3,587.49 × 1,420.70
  4. Step 4: Simplify right side
    2,599.62x = 5,096,729.11
  5. Step 5: Solve for x
    x = 5,096,729.11/2,599.62
  6. Step 6: Final answer
    x = 1,960.57

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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.