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Finding the Fourth Proportional to 3,482.99, 4,801.06 and 2,640.32

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Solution

The fourth proportional to 3,482.99, 4,801.06 and 2,640.32 is: 3,639.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,482.99 : 4,801.06 = 2,640.32 : x
  2. Step 2: Convert to fraction form
    3,482.99/4,801.06 = 2,640.32/x
  3. Step 3: Cross multiply
    3,482.99x = 4,801.06 × 2,640.32
  4. Step 4: Simplify right side
    3,482.99x = 12,676,334.74
  5. Step 5: Solve for x
    x = 12,676,334.74/3,482.99
  6. Step 6: Final answer
    x = 3,639.50

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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.