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Finding the Fourth Proportional to 7,802.32, 10,768.20 and 4,490.32

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Solution

The fourth proportional to 7,802.32, 10,768.20 and 4,490.32 is: 6,197.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,802.32 : 10,768.20 = 4,490.32 : x
  2. Step 2: Convert to fraction form
    7,802.32/10,768.20 = 4,490.32/x
  3. Step 3: Cross multiply
    7,802.32x = 10,768.20 × 4,490.32
  4. Step 4: Simplify right side
    7,802.32x = 48,352,663.82
  5. Step 5: Solve for x
    x = 48,352,663.82/7,802.32
  6. Step 6: Final answer
    x = 6,197.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.