Home / 2,114.64-2,918.07-1,170.45

Finding the Fourth Proportional to 2,114.64, 2,918.07 and 1,170.45

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Solution

The fourth proportional to 2,114.64, 2,918.07 and 1,170.45 is: 1,615.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.64 : 2,918.07 = 1,170.45 : x
  2. Step 2: Convert to fraction form
    2,114.64/2,918.07 = 1,170.45/x
  3. Step 3: Cross multiply
    2,114.64x = 2,918.07 × 1,170.45
  4. Step 4: Simplify right side
    2,114.64x = 3,415,455.03
  5. Step 5: Solve for x
    x = 3,415,455.03/2,114.64
  6. Step 6: Final answer
    x = 1,615.15

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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.