Home / 7,802.30-11,703.45-2,872.10

Finding the Fourth Proportional to 7,802.30, 11,703.45 and 2,872.10

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Solution

The fourth proportional to 7,802.30, 11,703.45 and 2,872.10 is: 4,308.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,802.30 : 11,703.45 = 2,872.10 : x
  2. Step 2: Convert to fraction form
    7,802.30/11,703.45 = 2,872.10/x
  3. Step 3: Cross multiply
    7,802.30x = 11,703.45 × 2,872.10
  4. Step 4: Simplify right side
    7,802.30x = 33,613,478.75
  5. Step 5: Solve for x
    x = 33,613,478.75/7,802.30
  6. Step 6: Final answer
    x = 4,308.15

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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.