Home / 2,782.89-4,156.02-2,372.76

Finding the Fourth Proportional to 2,782.89, 4,156.02 and 2,372.76

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Solution

The fourth proportional to 2,782.89, 4,156.02 and 2,372.76 is: 3,543.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.89 : 4,156.02 = 2,372.76 : x
  2. Step 2: Convert to fraction form
    2,782.89/4,156.02 = 2,372.76/x
  3. Step 3: Cross multiply
    2,782.89x = 4,156.02 × 2,372.76
  4. Step 4: Simplify right side
    2,782.89x = 9,861,238.02
  5. Step 5: Solve for x
    x = 9,861,238.02/2,782.89
  6. Step 6: Final answer
    x = 3,543.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.