Home / 3,617.02-4,989.90-2,776.24

Finding the Fourth Proportional to 3,617.02, 4,989.90 and 2,776.24

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Solution

The fourth proportional to 3,617.02, 4,989.90 and 2,776.24 is: 3,829.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.02 : 4,989.90 = 2,776.24 : x
  2. Step 2: Convert to fraction form
    3,617.02/4,989.90 = 2,776.24/x
  3. Step 3: Cross multiply
    3,617.02x = 4,989.90 × 2,776.24
  4. Step 4: Simplify right side
    3,617.02x = 13,853,159.98
  5. Step 5: Solve for x
    x = 13,853,159.98/3,617.02
  6. Step 6: Final answer
    x = 3,829.99

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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.