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Finding the Fourth Proportional to 1,460.33, 2,015.08 and 870.75

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Solution

The fourth proportional to 1,460.33, 2,015.08 and 870.75 is: 1,201.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,460.33 : 2,015.08 = 870.75 : x
  2. Step 2: Convert to fraction form
    1,460.33/2,015.08 = 870.75/x
  3. Step 3: Cross multiply
    1,460.33x = 2,015.08 × 870.75
  4. Step 4: Simplify right side
    1,460.33x = 1,754,628.73
  5. Step 5: Solve for x
    x = 1,754,628.73/1,460.33
  6. Step 6: Final answer
    x = 1,201.53

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Half scale
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Double scale
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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.