Home / 1,548.12-2,130.96-1,296.66

Finding the Fourth Proportional to 1,548.12, 2,130.96 and 1,296.66

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Solution

The fourth proportional to 1,548.12, 2,130.96 and 1,296.66 is: 1,784.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.12 : 2,130.96 = 1,296.66 : x
  2. Step 2: Convert to fraction form
    1,548.12/2,130.96 = 1,296.66/x
  3. Step 3: Cross multiply
    1,548.12x = 2,130.96 × 1,296.66
  4. Step 4: Simplify right side
    1,548.12x = 2,763,130.59
  5. Step 5: Solve for x
    x = 2,763,130.59/1,548.12
  6. Step 6: Final answer
    x = 1,784.83

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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.