Home / 2,284.15-3,152.10-1,289.43

Finding the Fourth Proportional to 2,284.15, 3,152.10 and 1,289.43

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Solution

The fourth proportional to 2,284.15, 3,152.10 and 1,289.43 is: 1,779.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,284.15 : 3,152.10 = 1,289.43 : x
  2. Step 2: Convert to fraction form
    2,284.15/3,152.10 = 1,289.43/x
  3. Step 3: Cross multiply
    2,284.15x = 3,152.10 × 1,289.43
  4. Step 4: Simplify right side
    2,284.15x = 4,064,412.30
  5. Step 5: Solve for x
    x = 4,064,412.30/2,284.15
  6. Step 6: Final answer
    x = 1,779.40

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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.