Home / 3,013.07-4,158.14-1,686.69

Finding the Fourth Proportional to 3,013.07, 4,158.14 and 1,686.69

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Solution

The fourth proportional to 3,013.07, 4,158.14 and 1,686.69 is: 2,327.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.07 : 4,158.14 = 1,686.69 : x
  2. Step 2: Convert to fraction form
    3,013.07/4,158.14 = 1,686.69/x
  3. Step 3: Cross multiply
    3,013.07x = 4,158.14 × 1,686.69
  4. Step 4: Simplify right side
    3,013.07x = 7,013,484.72
  5. Step 5: Solve for x
    x = 7,013,484.72/3,013.07
  6. Step 6: Final answer
    x = 2,327.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.