Home / 3,090.13-4,635.20-1,038.13

Finding the Fourth Proportional to 3,090.13, 4,635.20 and 1,038.13

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Solution

The fourth proportional to 3,090.13, 4,635.20 and 1,038.13 is: 1,557.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.13 : 4,635.20 = 1,038.13 : x
  2. Step 2: Convert to fraction form
    3,090.13/4,635.20 = 1,038.13/x
  3. Step 3: Cross multiply
    3,090.13x = 4,635.20 × 1,038.13
  4. Step 4: Simplify right side
    3,090.13x = 4,811,940.18
  5. Step 5: Solve for x
    x = 4,811,940.18/3,090.13
  6. Step 6: Final answer
    x = 1,557.20

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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.