Home / 5,223.60-7,813.80-4,705.20

Finding the Fourth Proportional to 5,223.60, 7,813.80 and 4,705.20

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Solution

The fourth proportional to 5,223.60, 7,813.80 and 4,705.20 is: 7,038.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,223.60 : 7,813.80 = 4,705.20 : x
  2. Step 2: Convert to fraction form
    5,223.60/7,813.80 = 4,705.20/x
  3. Step 3: Cross multiply
    5,223.60x = 7,813.80 × 4,705.20
  4. Step 4: Simplify right side
    5,223.60x = 36,765,491.76
  5. Step 5: Solve for x
    x = 36,765,491.76/5,223.60
  6. Step 6: Final answer
    x = 7,038.34

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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.