Home / 3,111.79-4,666.23-1,650.55

Finding the Fourth Proportional to 3,111.79, 4,666.23 and 1,650.55

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Solution

The fourth proportional to 3,111.79, 4,666.23 and 1,650.55 is: 2,475.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.79 : 4,666.23 = 1,650.55 : x
  2. Step 2: Convert to fraction form
    3,111.79/4,666.23 = 1,650.55/x
  3. Step 3: Cross multiply
    3,111.79x = 4,666.23 × 1,650.55
  4. Step 4: Simplify right side
    3,111.79x = 7,701,834.26
  5. Step 5: Solve for x
    x = 7,701,834.26/3,111.79
  6. Step 6: Final answer
    x = 2,475.05

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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.