Home / 3,113.76-4,670.64-2,923.68

Finding the Fourth Proportional to 3,113.76, 4,670.64 and 2,923.68

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Solution

The fourth proportional to 3,113.76, 4,670.64 and 2,923.68 is: 4,385.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.76 : 4,670.64 = 2,923.68 : x
  2. Step 2: Convert to fraction form
    3,113.76/4,670.64 = 2,923.68/x
  3. Step 3: Cross multiply
    3,113.76x = 4,670.64 × 2,923.68
  4. Step 4: Simplify right side
    3,113.76x = 13,655,456.76
  5. Step 5: Solve for x
    x = 13,655,456.76/3,113.76
  6. Step 6: Final answer
    x = 4,385.52

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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.