Home / 3,077.19-4,615.74-1,432.80

Finding the Fourth Proportional to 3,077.19, 4,615.74 and 1,432.80

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Solution

The fourth proportional to 3,077.19, 4,615.74 and 1,432.80 is: 2,149.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.19 : 4,615.74 = 1,432.80 : x
  2. Step 2: Convert to fraction form
    3,077.19/4,615.74 = 1,432.80/x
  3. Step 3: Cross multiply
    3,077.19x = 4,615.74 × 1,432.80
  4. Step 4: Simplify right side
    3,077.19x = 6,613,432.27
  5. Step 5: Solve for x
    x = 6,613,432.27/3,077.19
  6. Step 6: Final answer
    x = 2,149.18

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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.