Home / 2,611.17-3,603.49-1,432.32

Finding the Fourth Proportional to 2,611.17, 3,603.49 and 1,432.32

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Solution

The fourth proportional to 2,611.17, 3,603.49 and 1,432.32 is: 1,976.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.17 : 3,603.49 = 1,432.32 : x
  2. Step 2: Convert to fraction form
    2,611.17/3,603.49 = 1,432.32/x
  3. Step 3: Cross multiply
    2,611.17x = 3,603.49 × 1,432.32
  4. Step 4: Simplify right side
    2,611.17x = 5,161,333.70
  5. Step 5: Solve for x
    x = 5,161,333.70/2,611.17
  6. Step 6: Final answer
    x = 1,976.64

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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.