Home / 3,070.04-4,605.96-990.00

Finding the Fourth Proportional to 3,070.04, 4,605.96 and 990.00

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Solution

The fourth proportional to 3,070.04, 4,605.96 and 990.00 is: 1,485.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,070.04 : 4,605.96 = 990.00 : x
  2. Step 2: Convert to fraction form
    3,070.04/4,605.96 = 990.00/x
  3. Step 3: Cross multiply
    3,070.04x = 4,605.96 × 990.00
  4. Step 4: Simplify right side
    3,070.04x = 4,559,911.91
  5. Step 5: Solve for x
    x = 4,559,911.91/3,070.04
  6. Step 6: Final answer
    x = 1,485.29

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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.