Home / 3,139.35-4,332.09-1,813.02

Finding the Fourth Proportional to 3,139.35, 4,332.09 and 1,813.02

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Solution

The fourth proportional to 3,139.35, 4,332.09 and 1,813.02 is: 2,501.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,139.35 : 4,332.09 = 1,813.02 : x
  2. Step 2: Convert to fraction form
    3,139.35/4,332.09 = 1,813.02/x
  3. Step 3: Cross multiply
    3,139.35x = 4,332.09 × 1,813.02
  4. Step 4: Simplify right side
    3,139.35x = 7,854,165.81
  5. Step 5: Solve for x
    x = 7,854,165.81/3,139.35
  6. Step 6: Final answer
    x = 2,501.84

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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.