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Finding the Fourth Proportional to 972.02, 1,450.68 and 946.10

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Solution

The fourth proportional to 972.02, 1,450.68 and 946.10 is: 1,412.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    972.02 : 1,450.68 = 946.10 : x
  2. Step 2: Convert to fraction form
    972.02/1,450.68 = 946.10/x
  3. Step 3: Cross multiply
    972.02x = 1,450.68 × 946.10
  4. Step 4: Simplify right side
    972.02x = 1,372,488.35
  5. Step 5: Solve for x
    x = 1,372,488.35/972.02
  6. Step 6: Final answer
    x = 1,412.00

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.