Home / 7,420.79-11,116.26-3,466.58

Finding the Fourth Proportional to 7,420.79, 11,116.26 and 3,466.58

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Solution

The fourth proportional to 7,420.79, 11,116.26 and 3,466.58 is: 5,192.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.79 : 11,116.26 = 3,466.58 : x
  2. Step 2: Convert to fraction form
    7,420.79/11,116.26 = 3,466.58/x
  3. Step 3: Cross multiply
    7,420.79x = 11,116.26 × 3,466.58
  4. Step 4: Simplify right side
    7,420.79x = 38,535,349.01
  5. Step 5: Solve for x
    x = 38,535,349.01/7,420.79
  6. Step 6: Final answer
    x = 5,192.89

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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.