Home / 1,711.36-2,567.85-931.33

Finding the Fourth Proportional to 1,711.36, 2,567.85 and 931.33

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Solution

The fourth proportional to 1,711.36, 2,567.85 and 931.33 is: 1,397.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.36 : 2,567.85 = 931.33 : x
  2. Step 2: Convert to fraction form
    1,711.36/2,567.85 = 931.33/x
  3. Step 3: Cross multiply
    1,711.36x = 2,567.85 × 931.33
  4. Step 4: Simplify right side
    1,711.36x = 2,391,515.74
  5. Step 5: Solve for x
    x = 2,391,515.74/1,711.36
  6. Step 6: Final answer
    x = 1,397.44

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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.