Home / 3,090.51-4,633.61-1,528.61

Finding the Fourth Proportional to 3,090.51, 4,633.61 and 1,528.61

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Solution

The fourth proportional to 3,090.51, 4,633.61 and 1,528.61 is: 2,291.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.51 : 4,633.61 = 1,528.61 : x
  2. Step 2: Convert to fraction form
    3,090.51/4,633.61 = 1,528.61/x
  3. Step 3: Cross multiply
    3,090.51x = 4,633.61 × 1,528.61
  4. Step 4: Simplify right side
    3,090.51x = 7,082,951.77
  5. Step 5: Solve for x
    x = 7,082,951.77/3,090.51
  6. Step 6: Final answer
    x = 2,291.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.