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Finding the Fourth Proportional to 4,642.90, 6,964.80 and 1,356.01

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Solution

The fourth proportional to 4,642.90, 6,964.80 and 1,356.01 is: 2,034.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,642.90 : 6,964.80 = 1,356.01 : x
  2. Step 2: Convert to fraction form
    4,642.90/6,964.80 = 1,356.01/x
  3. Step 3: Cross multiply
    4,642.90x = 6,964.80 × 1,356.01
  4. Step 4: Simplify right side
    4,642.90x = 9,444,338.45
  5. Step 5: Solve for x
    x = 9,444,338.45/4,642.90
  6. Step 6: Final answer
    x = 2,034.15

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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.