Home / 3,807.18-5,704.86-2,639.45

Finding the Fourth Proportional to 3,807.18, 5,704.86 and 2,639.45

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Solution

The fourth proportional to 3,807.18, 5,704.86 and 2,639.45 is: 3,955.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,807.18 : 5,704.86 = 2,639.45 : x
  2. Step 2: Convert to fraction form
    3,807.18/5,704.86 = 2,639.45/x
  3. Step 3: Cross multiply
    3,807.18x = 5,704.86 × 2,639.45
  4. Step 4: Simplify right side
    3,807.18x = 15,057,700.71
  5. Step 5: Solve for x
    x = 15,057,700.71/3,807.18
  6. Step 6: Final answer
    x = 3,955.08

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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.