Home / 5,614.30-8,421.22-1,665.40

Finding the Fourth Proportional to 5,614.30, 8,421.22 and 1,665.40

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Solution

The fourth proportional to 5,614.30, 8,421.22 and 1,665.40 is: 2,498.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,614.30 : 8,421.22 = 1,665.40 : x
  2. Step 2: Convert to fraction form
    5,614.30/8,421.22 = 1,665.40/x
  3. Step 3: Cross multiply
    5,614.30x = 8,421.22 × 1,665.40
  4. Step 4: Simplify right side
    5,614.30x = 14,024,649.35
  5. Step 5: Solve for x
    x = 14,024,649.35/5,614.30
  6. Step 6: Final answer
    x = 2,498.03

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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.