Home / 5,287.08-7,281.30-4,394.80

Finding the Fourth Proportional to 5,287.08, 7,281.30 and 4,394.80

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Solution

The fourth proportional to 5,287.08, 7,281.30 and 4,394.80 is: 6,052.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.08 : 7,281.30 = 4,394.80 : x
  2. Step 2: Convert to fraction form
    5,287.08/7,281.30 = 4,394.80/x
  3. Step 3: Cross multiply
    5,287.08x = 7,281.30 × 4,394.80
  4. Step 4: Simplify right side
    5,287.08x = 31,999,857.24
  5. Step 5: Solve for x
    x = 31,999,857.24/5,287.08
  6. Step 6: Final answer
    x = 6,052.46

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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.