Home / 1,817.17-2,507.05-1,188.06

Finding the Fourth Proportional to 1,817.17, 2,507.05 and 1,188.06

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Solution

The fourth proportional to 1,817.17, 2,507.05 and 1,188.06 is: 1,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.17 : 2,507.05 = 1,188.06 : x
  2. Step 2: Convert to fraction form
    1,817.17/2,507.05 = 1,188.06/x
  3. Step 3: Cross multiply
    1,817.17x = 2,507.05 × 1,188.06
  4. Step 4: Simplify right side
    1,817.17x = 2,978,525.82
  5. Step 5: Solve for x
    x = 2,978,525.82/1,817.17
  6. Step 6: Final answer
    x = 1,639.10

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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.