Home / 2,885.02-4,327.95-1,129.70

Finding the Fourth Proportional to 2,885.02, 4,327.95 and 1,129.70

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Solution

The fourth proportional to 2,885.02, 4,327.95 and 1,129.70 is: 1,694.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.02 : 4,327.95 = 1,129.70 : x
  2. Step 2: Convert to fraction form
    2,885.02/4,327.95 = 1,129.70/x
  3. Step 3: Cross multiply
    2,885.02x = 4,327.95 × 1,129.70
  4. Step 4: Simplify right side
    2,885.02x = 4,889,285.12
  5. Step 5: Solve for x
    x = 4,889,285.12/2,885.02
  6. Step 6: Final answer
    x = 1,694.71

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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.