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Finding the Fourth Proportional to 2,949.98, 4,424.97 and 870.01

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Solution

The fourth proportional to 2,949.98, 4,424.97 and 870.01 is: 1,305.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.98 : 4,424.97 = 870.01 : x
  2. Step 2: Convert to fraction form
    2,949.98/4,424.97 = 870.01/x
  3. Step 3: Cross multiply
    2,949.98x = 4,424.97 × 870.01
  4. Step 4: Simplify right side
    2,949.98x = 3,849,754.23
  5. Step 5: Solve for x
    x = 3,849,754.23/2,949.98
  6. Step 6: Final answer
    x = 1,305.01

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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.