Home / 6,690.83-10,030.58-4,220.21

Finding the Fourth Proportional to 6,690.83, 10,030.58 and 4,220.21

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Solution

The fourth proportional to 6,690.83, 10,030.58 and 4,220.21 is: 6,326.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.83 : 10,030.58 = 4,220.21 : x
  2. Step 2: Convert to fraction form
    6,690.83/10,030.58 = 4,220.21/x
  3. Step 3: Cross multiply
    6,690.83x = 10,030.58 × 4,220.21
  4. Step 4: Simplify right side
    6,690.83x = 42,331,141.14
  5. Step 5: Solve for x
    x = 42,331,141.14/6,690.83
  6. Step 6: Final answer
    x = 6,326.74

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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.