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Finding the Fourth Proportional to 1,560.06, 2,340.09 and 867.51

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Solution

The fourth proportional to 1,560.06, 2,340.09 and 867.51 is: 1,301.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.06 : 2,340.09 = 867.51 : x
  2. Step 2: Convert to fraction form
    1,560.06/2,340.09 = 867.51/x
  3. Step 3: Cross multiply
    1,560.06x = 2,340.09 × 867.51
  4. Step 4: Simplify right side
    1,560.06x = 2,030,051.48
  5. Step 5: Solve for x
    x = 2,030,051.48/1,560.06
  6. Step 6: Final answer
    x = 1,301.27

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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.