Home / 2,802.30-4,207.08-1,980.96

Finding the Fourth Proportional to 2,802.30, 4,207.08 and 1,980.96

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Solution

The fourth proportional to 2,802.30, 4,207.08 and 1,980.96 is: 2,974.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.30 : 4,207.08 = 1,980.96 : x
  2. Step 2: Convert to fraction form
    2,802.30/4,207.08 = 1,980.96/x
  3. Step 3: Cross multiply
    2,802.30x = 4,207.08 × 1,980.96
  4. Step 4: Simplify right side
    2,802.30x = 8,334,057.20
  5. Step 5: Solve for x
    x = 8,334,057.20/2,802.30
  6. Step 6: Final answer
    x = 2,974.01

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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.