Home / 5,614.55-8,420.87-1,665.72

Finding the Fourth Proportional to 5,614.55, 8,420.87 and 1,665.72

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Solution

The fourth proportional to 5,614.55, 8,420.87 and 1,665.72 is: 2,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,614.55 : 8,420.87 = 1,665.72 : x
  2. Step 2: Convert to fraction form
    5,614.55/8,420.87 = 1,665.72/x
  3. Step 3: Cross multiply
    5,614.55x = 8,420.87 × 1,665.72
  4. Step 4: Simplify right side
    5,614.55x = 14,026,803.25
  5. Step 5: Solve for x
    x = 14,026,803.25/5,614.55
  6. Step 6: Final answer
    x = 2,498.30

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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.