Home / 2,374.90-3,277.20-1,312.60

Finding the Fourth Proportional to 2,374.90, 3,277.20 and 1,312.60

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Solution

The fourth proportional to 2,374.90, 3,277.20 and 1,312.60 is: 1,811.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,374.90 : 3,277.20 = 1,312.60 : x
  2. Step 2: Convert to fraction form
    2,374.90/3,277.20 = 1,312.60/x
  3. Step 3: Cross multiply
    2,374.90x = 3,277.20 × 1,312.60
  4. Step 4: Simplify right side
    2,374.90x = 4,301,652.72
  5. Step 5: Solve for x
    x = 4,301,652.72/2,374.90
  6. Step 6: Final answer
    x = 1,811.30

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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.