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Finding the Fourth Proportional to 1,900.06, 2,846.08 and 972.79

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Solution

The fourth proportional to 1,900.06, 2,846.08 and 972.79 is: 1,457.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,900.06 : 2,846.08 = 972.79 : x
  2. Step 2: Convert to fraction form
    1,900.06/2,846.08 = 972.79/x
  3. Step 3: Cross multiply
    1,900.06x = 2,846.08 × 972.79
  4. Step 4: Simplify right side
    1,900.06x = 2,768,638.16
  5. Step 5: Solve for x
    x = 2,768,638.16/1,900.06
  6. Step 6: Final answer
    x = 1,457.13

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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.