Home / 4,683.20-7,024.80-1,220.45

Finding the Fourth Proportional to 4,683.20, 7,024.80 and 1,220.45

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Solution

The fourth proportional to 4,683.20, 7,024.80 and 1,220.45 is: 1,830.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,683.20 : 7,024.80 = 1,220.45 : x
  2. Step 2: Convert to fraction form
    4,683.20/7,024.80 = 1,220.45/x
  3. Step 3: Cross multiply
    4,683.20x = 7,024.80 × 1,220.45
  4. Step 4: Simplify right side
    4,683.20x = 8,573,417.16
  5. Step 5: Solve for x
    x = 8,573,417.16/4,683.20
  6. Step 6: Final answer
    x = 1,830.68

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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.