Home / 4,826.61-6,666.98-3,990.69

Finding the Fourth Proportional to 4,826.61, 6,666.98 and 3,990.69

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Solution

The fourth proportional to 4,826.61, 6,666.98 and 3,990.69 is: 5,512.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,826.61 : 6,666.98 = 3,990.69 : x
  2. Step 2: Convert to fraction form
    4,826.61/6,666.98 = 3,990.69/x
  3. Step 3: Cross multiply
    4,826.61x = 6,666.98 × 3,990.69
  4. Step 4: Simplify right side
    4,826.61x = 26,605,830.46
  5. Step 5: Solve for x
    x = 26,605,830.46/4,826.61
  6. Step 6: Final answer
    x = 5,512.32

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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.