Home / 3,113.02-4,670.21-1,358.30

Finding the Fourth Proportional to 3,113.02, 4,670.21 and 1,358.30

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Solution

The fourth proportional to 3,113.02, 4,670.21 and 1,358.30 is: 2,037.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.02 : 4,670.21 = 1,358.30 : x
  2. Step 2: Convert to fraction form
    3,113.02/4,670.21 = 1,358.30/x
  3. Step 3: Cross multiply
    3,113.02x = 4,670.21 × 1,358.30
  4. Step 4: Simplify right side
    3,113.02x = 6,343,553.67
  5. Step 5: Solve for x
    x = 6,343,553.67/3,113.02
  6. Step 6: Final answer
    x = 2,037.75

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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.