Home / 4,000.74-5,518.45-2,428.83

Finding the Fourth Proportional to 4,000.74, 5,518.45 and 2,428.83

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Solution

The fourth proportional to 4,000.74, 5,518.45 and 2,428.83 is: 3,350.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,000.74 : 5,518.45 = 2,428.83 : x
  2. Step 2: Convert to fraction form
    4,000.74/5,518.45 = 2,428.83/x
  3. Step 3: Cross multiply
    4,000.74x = 5,518.45 × 2,428.83
  4. Step 4: Simplify right side
    4,000.74x = 13,403,364.77
  5. Step 5: Solve for x
    x = 13,403,364.77/4,000.74
  6. Step 6: Final answer
    x = 3,350.23

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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.