Home / 1,851.90-2,777.85-1,650.30

Finding the Fourth Proportional to 1,851.90, 2,777.85 and 1,650.30

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Solution

The fourth proportional to 1,851.90, 2,777.85 and 1,650.30 is: 2,475.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.90 : 2,777.85 = 1,650.30 : x
  2. Step 2: Convert to fraction form
    1,851.90/2,777.85 = 1,650.30/x
  3. Step 3: Cross multiply
    1,851.90x = 2,777.85 × 1,650.30
  4. Step 4: Simplify right side
    1,851.90x = 4,584,285.86
  5. Step 5: Solve for x
    x = 4,584,285.86/1,851.90
  6. Step 6: Final answer
    x = 2,475.45

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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.