Home / 5,421.90-8,133.40-1,473.22

Finding the Fourth Proportional to 5,421.90, 8,133.40 and 1,473.22

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Solution

The fourth proportional to 5,421.90, 8,133.40 and 1,473.22 is: 2,209.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.90 : 8,133.40 = 1,473.22 : x
  2. Step 2: Convert to fraction form
    5,421.90/8,133.40 = 1,473.22/x
  3. Step 3: Cross multiply
    5,421.90x = 8,133.40 × 1,473.22
  4. Step 4: Simplify right side
    5,421.90x = 11,982,287.55
  5. Step 5: Solve for x
    x = 11,982,287.55/5,421.90
  6. Step 6: Final answer
    x = 2,209.98

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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.