Home / 2,617.93-3,612.80-1,439.11

Finding the Fourth Proportional to 2,617.93, 3,612.80 and 1,439.11

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Solution

The fourth proportional to 2,617.93, 3,612.80 and 1,439.11 is: 1,986.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.93 : 3,612.80 = 1,439.11 : x
  2. Step 2: Convert to fraction form
    2,617.93/3,612.80 = 1,439.11/x
  3. Step 3: Cross multiply
    2,617.93x = 3,612.80 × 1,439.11
  4. Step 4: Simplify right side
    2,617.93x = 5,199,209.41
  5. Step 5: Solve for x
    x = 5,199,209.41/2,617.93
  6. Step 6: Final answer
    x = 1,986.00

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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.