Home / 3,244.40-4,478.25-2,807.00

Finding the Fourth Proportional to 3,244.40, 4,478.25 and 2,807.00

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Solution

The fourth proportional to 3,244.40, 4,478.25 and 2,807.00 is: 3,874.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,244.40 : 4,478.25 = 2,807.00 : x
  2. Step 2: Convert to fraction form
    3,244.40/4,478.25 = 2,807.00/x
  3. Step 3: Cross multiply
    3,244.40x = 4,478.25 × 2,807.00
  4. Step 4: Simplify right side
    3,244.40x = 12,570,411.32
  5. Step 5: Solve for x
    x = 12,570,411.32/3,244.40
  6. Step 6: Final answer
    x = 3,874.50

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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.