Home / 3,013.10-4,157.85-1,686.50

Finding the Fourth Proportional to 3,013.10, 4,157.85 and 1,686.50

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Solution

The fourth proportional to 3,013.10, 4,157.85 and 1,686.50 is: 2,327.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.10 : 4,157.85 = 1,686.50 : x
  2. Step 2: Convert to fraction form
    3,013.10/4,157.85 = 1,686.50/x
  3. Step 3: Cross multiply
    3,013.10x = 4,157.85 × 1,686.50
  4. Step 4: Simplify right side
    3,013.10x = 7,012,214.03
  5. Step 5: Solve for x
    x = 7,012,214.03/3,013.10
  6. Step 6: Final answer
    x = 2,327.24

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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.