Home / 2,172.64-2,997.44-1,500.40

Finding the Fourth Proportional to 2,172.64, 2,997.44 and 1,500.40

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Solution

The fourth proportional to 2,172.64, 2,997.44 and 1,500.40 is: 2,070.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.64 : 2,997.44 = 1,500.40 : x
  2. Step 2: Convert to fraction form
    2,172.64/2,997.44 = 1,500.40/x
  3. Step 3: Cross multiply
    2,172.64x = 2,997.44 × 1,500.40
  4. Step 4: Simplify right side
    2,172.64x = 4,497,358.98
  5. Step 5: Solve for x
    x = 4,497,358.98/2,172.64
  6. Step 6: Final answer
    x = 2,070.00

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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.