Home / 3,088.56-4,262.08-1,909.76

Finding the Fourth Proportional to 3,088.56, 4,262.08 and 1,909.76

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Solution

The fourth proportional to 3,088.56, 4,262.08 and 1,909.76 is: 2,635.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,088.56 : 4,262.08 = 1,909.76 : x
  2. Step 2: Convert to fraction form
    3,088.56/4,262.08 = 1,909.76/x
  3. Step 3: Cross multiply
    3,088.56x = 4,262.08 × 1,909.76
  4. Step 4: Simplify right side
    3,088.56x = 8,139,549.90
  5. Step 5: Solve for x
    x = 8,139,549.90/3,088.56
  6. Step 6: Final answer
    x = 2,635.39

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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.