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Finding the Fourth Proportional to 3,038.99, 4,555.64 and 1,393.88

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Solution

The fourth proportional to 3,038.99, 4,555.64 and 1,393.88 is: 2,089.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.99 : 4,555.64 = 1,393.88 : x
  2. Step 2: Convert to fraction form
    3,038.99/4,555.64 = 1,393.88/x
  3. Step 3: Cross multiply
    3,038.99x = 4,555.64 × 1,393.88
  4. Step 4: Simplify right side
    3,038.99x = 6,349,996.19
  5. Step 5: Solve for x
    x = 6,349,996.19/3,038.99
  6. Step 6: Final answer
    x = 2,089.51

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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.