Home / 4,420.10-6,635.55-4,387.70

Finding the Fourth Proportional to 4,420.10, 6,635.55 and 4,387.70

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Solution

The fourth proportional to 4,420.10, 6,635.55 and 4,387.70 is: 6,586.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,420.10 : 6,635.55 = 4,387.70 : x
  2. Step 2: Convert to fraction form
    4,420.10/6,635.55 = 4,387.70/x
  3. Step 3: Cross multiply
    4,420.10x = 6,635.55 × 4,387.70
  4. Step 4: Simplify right side
    4,420.10x = 29,114,802.74
  5. Step 5: Solve for x
    x = 29,114,802.74/4,420.10
  6. Step 6: Final answer
    x = 6,586.91

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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.