Home / 2,912.40-4,368.60-1,873.58

Finding the Fourth Proportional to 2,912.40, 4,368.60 and 1,873.58

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Solution

The fourth proportional to 2,912.40, 4,368.60 and 1,873.58 is: 2,810.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.40 : 4,368.60 = 1,873.58 : x
  2. Step 2: Convert to fraction form
    2,912.40/4,368.60 = 1,873.58/x
  3. Step 3: Cross multiply
    2,912.40x = 4,368.60 × 1,873.58
  4. Step 4: Simplify right side
    2,912.40x = 8,184,899.75
  5. Step 5: Solve for x
    x = 8,184,899.75/2,912.40
  6. Step 6: Final answer
    x = 2,810.36

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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.