Home / 1,741.20-2,402.16-1,077.60

Finding the Fourth Proportional to 1,741.20, 2,402.16 and 1,077.60

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Solution

The fourth proportional to 1,741.20, 2,402.16 and 1,077.60 is: 1,486.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,741.20 : 2,402.16 = 1,077.60 : x
  2. Step 2: Convert to fraction form
    1,741.20/2,402.16 = 1,077.60/x
  3. Step 3: Cross multiply
    1,741.20x = 2,402.16 × 1,077.60
  4. Step 4: Simplify right side
    1,741.20x = 2,588,567.62
  5. Step 5: Solve for x
    x = 2,588,567.62/1,741.20
  6. Step 6: Final answer
    x = 1,486.66

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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.