Home / 2,142.48-3,206.59-1,885.57

Finding the Fourth Proportional to 2,142.48, 3,206.59 and 1,885.57

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Solution

The fourth proportional to 2,142.48, 3,206.59 and 1,885.57 is: 2,822.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142.48 : 3,206.59 = 1,885.57 : x
  2. Step 2: Convert to fraction form
    2,142.48/3,206.59 = 1,885.57/x
  3. Step 3: Cross multiply
    2,142.48x = 3,206.59 × 1,885.57
  4. Step 4: Simplify right side
    2,142.48x = 6,046,232.67
  5. Step 5: Solve for x
    x = 6,046,232.67/2,142.48
  6. Step 6: Final answer
    x = 2,822.08

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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.