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Finding the Fourth Proportional to 1,461.83, 2,017.14 and 872.25

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Solution

The fourth proportional to 1,461.83, 2,017.14 and 872.25 is: 1,203.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461.83 : 2,017.14 = 872.25 : x
  2. Step 2: Convert to fraction form
    1,461.83/2,017.14 = 872.25/x
  3. Step 3: Cross multiply
    1,461.83x = 2,017.14 × 872.25
  4. Step 4: Simplify right side
    1,461.83x = 1,759,450.37
  5. Step 5: Solve for x
    x = 1,759,450.37/1,461.83
  6. Step 6: Final answer
    x = 1,203.60

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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.