Home / 1,670.64-2,305.60-1,110.16

Finding the Fourth Proportional to 1,670.64, 2,305.60 and 1,110.16

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Solution

The fourth proportional to 1,670.64, 2,305.60 and 1,110.16 is: 1,532.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,670.64 : 2,305.60 = 1,110.16 : x
  2. Step 2: Convert to fraction form
    1,670.64/2,305.60 = 1,110.16/x
  3. Step 3: Cross multiply
    1,670.64x = 2,305.60 × 1,110.16
  4. Step 4: Simplify right side
    1,670.64x = 2,559,584.90
  5. Step 5: Solve for x
    x = 2,559,584.90/1,670.64
  6. Step 6: Final answer
    x = 1,532.10

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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.