Home / 1,921.88-2,652.54-1,507.16

Finding the Fourth Proportional to 1,921.88, 2,652.54 and 1,507.16

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Solution

The fourth proportional to 1,921.88, 2,652.54 and 1,507.16 is: 2,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.88 : 2,652.54 = 1,507.16 : x
  2. Step 2: Convert to fraction form
    1,921.88/2,652.54 = 1,507.16/x
  3. Step 3: Cross multiply
    1,921.88x = 2,652.54 × 1,507.16
  4. Step 4: Simplify right side
    1,921.88x = 3,997,802.19
  5. Step 5: Solve for x
    x = 3,997,802.19/1,921.88
  6. Step 6: Final answer
    x = 2,080.15

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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.