Home / 1,549.86-2,137.17-1,172.64

Finding the Fourth Proportional to 1,549.86, 2,137.17 and 1,172.64

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Solution

The fourth proportional to 1,549.86, 2,137.17 and 1,172.64 is: 1,617.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.86 : 2,137.17 = 1,172.64 : x
  2. Step 2: Convert to fraction form
    1,549.86/2,137.17 = 1,172.64/x
  3. Step 3: Cross multiply
    1,549.86x = 2,137.17 × 1,172.64
  4. Step 4: Simplify right side
    1,549.86x = 2,506,131.03
  5. Step 5: Solve for x
    x = 2,506,131.03/1,549.86
  6. Step 6: Final answer
    x = 1,617.00

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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.