Home / 3,177.18-4,384.35-1,779.66

Finding the Fourth Proportional to 3,177.18, 4,384.35 and 1,779.66

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Solution

The fourth proportional to 3,177.18, 4,384.35 and 1,779.66 is: 2,455.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,177.18 : 4,384.35 = 1,779.66 : x
  2. Step 2: Convert to fraction form
    3,177.18/4,384.35 = 1,779.66/x
  3. Step 3: Cross multiply
    3,177.18x = 4,384.35 × 1,779.66
  4. Step 4: Simplify right side
    3,177.18x = 7,802,652.32
  5. Step 5: Solve for x
    x = 7,802,652.32/3,177.18
  6. Step 6: Final answer
    x = 2,455.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.