Home / 2,130.75-3,196.40-591.75

Finding the Fourth Proportional to 2,130.75, 3,196.40 and 591.75

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Solution

The fourth proportional to 2,130.75, 3,196.40 and 591.75 is: 887.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.75 : 3,196.40 = 591.75 : x
  2. Step 2: Convert to fraction form
    2,130.75/3,196.40 = 591.75/x
  3. Step 3: Cross multiply
    2,130.75x = 3,196.40 × 591.75
  4. Step 4: Simplify right side
    2,130.75x = 1,891,466.74
  5. Step 5: Solve for x
    x = 1,891,466.74/2,130.75
  6. Step 6: Final answer
    x = 887.70

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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.