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Finding the Fourth Proportional to 7,802.02, 11,701.68 and 3,642.40

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Solution

The fourth proportional to 7,802.02, 11,701.68 and 3,642.40 is: 5,462.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,802.02 : 11,701.68 = 3,642.40 : x
  2. Step 2: Convert to fraction form
    7,802.02/11,701.68 = 3,642.40/x
  3. Step 3: Cross multiply
    7,802.02x = 11,701.68 × 3,642.40
  4. Step 4: Simplify right side
    7,802.02x = 42,622,199.23
  5. Step 5: Solve for x
    x = 42,622,199.23/7,802.02
  6. Step 6: Final answer
    x = 5,462.97

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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.