Home / 2,620.26-3,931.47-887.94

Finding the Fourth Proportional to 2,620.26, 3,931.47 and 887.94

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Solution

The fourth proportional to 2,620.26, 3,931.47 and 887.94 is: 1,332.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.26 : 3,931.47 = 887.94 : x
  2. Step 2: Convert to fraction form
    2,620.26/3,931.47 = 887.94/x
  3. Step 3: Cross multiply
    2,620.26x = 3,931.47 × 887.94
  4. Step 4: Simplify right side
    2,620.26x = 3,490,909.47
  5. Step 5: Solve for x
    x = 3,490,909.47/2,620.26
  6. Step 6: Final answer
    x = 1,332.28

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1.5x scale

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.