Home / 1,851.64-2,779.32-927.86

Finding the Fourth Proportional to 1,851.64, 2,779.32 and 927.86

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Solution

The fourth proportional to 1,851.64, 2,779.32 and 927.86 is: 1,392.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.64 : 2,779.32 = 927.86 : x
  2. Step 2: Convert to fraction form
    1,851.64/2,779.32 = 927.86/x
  3. Step 3: Cross multiply
    1,851.64x = 2,779.32 × 927.86
  4. Step 4: Simplify right side
    1,851.64x = 2,578,819.86
  5. Step 5: Solve for x
    x = 2,578,819.86/1,851.64
  6. Step 6: Final answer
    x = 1,392.72

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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.