Home / 4,985.91-7,464.81-2,640.60

Finding the Fourth Proportional to 4,985.91, 7,464.81 and 2,640.60

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Solution

The fourth proportional to 4,985.91, 7,464.81 and 2,640.60 is: 3,953.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.91 : 7,464.81 = 2,640.60 : x
  2. Step 2: Convert to fraction form
    4,985.91/7,464.81 = 2,640.60/x
  3. Step 3: Cross multiply
    4,985.91x = 7,464.81 × 2,640.60
  4. Step 4: Simplify right side
    4,985.91x = 19,711,577.29
  5. Step 5: Solve for x
    x = 19,711,577.29/4,985.91
  6. Step 6: Final answer
    x = 3,953.46

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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.