Home / 2,054.40-2,835.20-1,170.40

Finding the Fourth Proportional to 2,054.40, 2,835.20 and 1,170.40

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Solution

The fourth proportional to 2,054.40, 2,835.20 and 1,170.40 is: 1,615.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,054.40 : 2,835.20 = 1,170.40 : x
  2. Step 2: Convert to fraction form
    2,054.40/2,835.20 = 1,170.40/x
  3. Step 3: Cross multiply
    2,054.40x = 2,835.20 × 1,170.40
  4. Step 4: Simplify right side
    2,054.40x = 3,318,318.08
  5. Step 5: Solve for x
    x = 3,318,318.08/2,054.40
  6. Step 6: Final answer
    x = 1,615.22

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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.