Home / 3,124.09-4,686.15-1,393.93

Finding the Fourth Proportional to 3,124.09, 4,686.15 and 1,393.93

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Solution

The fourth proportional to 3,124.09, 4,686.15 and 1,393.93 is: 2,090.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.09 : 4,686.15 = 1,393.93 : x
  2. Step 2: Convert to fraction form
    3,124.09/4,686.15 = 1,393.93/x
  3. Step 3: Cross multiply
    3,124.09x = 4,686.15 × 1,393.93
  4. Step 4: Simplify right side
    3,124.09x = 6,532,165.07
  5. Step 5: Solve for x
    x = 6,532,165.07/3,124.09
  6. Step 6: Final answer
    x = 2,090.90

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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.