Home / 2,807.61-4,182.60-2,681.25

Finding the Fourth Proportional to 2,807.61, 4,182.60 and 2,681.25

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Solution

The fourth proportional to 2,807.61, 4,182.60 and 2,681.25 is: 3,994.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.61 : 4,182.60 = 2,681.25 : x
  2. Step 2: Convert to fraction form
    2,807.61/4,182.60 = 2,681.25/x
  3. Step 3: Cross multiply
    2,807.61x = 4,182.60 × 2,681.25
  4. Step 4: Simplify right side
    2,807.61x = 11,214,596.25
  5. Step 5: Solve for x
    x = 11,214,596.25/2,807.61
  6. Step 6: Final answer
    x = 3,994.36

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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.