Home / 4,948.40-7,423.80-1,485.64

Finding the Fourth Proportional to 4,948.40, 7,423.80 and 1,485.64

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Solution

The fourth proportional to 4,948.40, 7,423.80 and 1,485.64 is: 2,228.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,948.40 : 7,423.80 = 1,485.64 : x
  2. Step 2: Convert to fraction form
    4,948.40/7,423.80 = 1,485.64/x
  3. Step 3: Cross multiply
    4,948.40x = 7,423.80 × 1,485.64
  4. Step 4: Simplify right side
    4,948.40x = 11,029,094.23
  5. Step 5: Solve for x
    x = 11,029,094.23/4,948.40
  6. Step 6: Final answer
    x = 2,228.82

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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.