Home / 3,985.04-5,970.93-2,813.12

Finding the Fourth Proportional to 3,985.04, 5,970.93 and 2,813.12

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Solution

The fourth proportional to 3,985.04, 5,970.93 and 2,813.12 is: 4,215.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.04 : 5,970.93 = 2,813.12 : x
  2. Step 2: Convert to fraction form
    3,985.04/5,970.93 = 2,813.12/x
  3. Step 3: Cross multiply
    3,985.04x = 5,970.93 × 2,813.12
  4. Step 4: Simplify right side
    3,985.04x = 16,796,942.60
  5. Step 5: Solve for x
    x = 16,796,942.60/3,985.04
  6. Step 6: Final answer
    x = 4,215.00

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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.