Home / 3,118.53-4,303.40-1,861.01

Finding the Fourth Proportional to 3,118.53, 4,303.40 and 1,861.01

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Solution

The fourth proportional to 3,118.53, 4,303.40 and 1,861.01 is: 2,568.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.53 : 4,303.40 = 1,861.01 : x
  2. Step 2: Convert to fraction form
    3,118.53/4,303.40 = 1,861.01/x
  3. Step 3: Cross multiply
    3,118.53x = 4,303.40 × 1,861.01
  4. Step 4: Simplify right side
    3,118.53x = 8,008,639.61
  5. Step 5: Solve for x
    x = 8,008,639.61/3,118.53
  6. Step 6: Final answer
    x = 2,568.08

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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.