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Finding the Fourth Proportional to 1,669.58, 2,304.15 and 971.06

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Solution

The fourth proportional to 1,669.58, 2,304.15 and 971.06 is: 1,340.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.58 : 2,304.15 = 971.06 : x
  2. Step 2: Convert to fraction form
    1,669.58/2,304.15 = 971.06/x
  3. Step 3: Cross multiply
    1,669.58x = 2,304.15 × 971.06
  4. Step 4: Simplify right side
    1,669.58x = 2,237,467.90
  5. Step 5: Solve for x
    x = 2,237,467.90/1,669.58
  6. Step 6: Final answer
    x = 1,340.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.