Home / 5,080.48-7,011.60-2,985.76

Finding the Fourth Proportional to 5,080.48, 7,011.60 and 2,985.76

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Solution

The fourth proportional to 5,080.48, 7,011.60 and 2,985.76 is: 4,120.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,080.48 : 7,011.60 = 2,985.76 : x
  2. Step 2: Convert to fraction form
    5,080.48/7,011.60 = 2,985.76/x
  3. Step 3: Cross multiply
    5,080.48x = 7,011.60 × 2,985.76
  4. Step 4: Simplify right side
    5,080.48x = 20,934,954.82
  5. Step 5: Solve for x
    x = 20,934,954.82/5,080.48
  6. Step 6: Final answer
    x = 4,120.66

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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.