Home / 3,077.03-4,615.55-768.53

Finding the Fourth Proportional to 3,077.03, 4,615.55 and 768.53

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Solution

The fourth proportional to 3,077.03, 4,615.55 and 768.53 is: 1,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.03 : 4,615.55 = 768.53 : x
  2. Step 2: Convert to fraction form
    3,077.03/4,615.55 = 768.53/x
  3. Step 3: Cross multiply
    3,077.03x = 4,615.55 × 768.53
  4. Step 4: Simplify right side
    3,077.03x = 3,547,188.64
  5. Step 5: Solve for x
    x = 3,547,188.64/3,077.03
  6. Step 6: Final answer
    x = 1,152.80

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Similar ratio
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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.