Home / 2,374.21-3,276.34-1,312.05

Finding the Fourth Proportional to 2,374.21, 3,276.34 and 1,312.05

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Solution

The fourth proportional to 2,374.21, 3,276.34 and 1,312.05 is: 1,810.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,374.21 : 3,276.34 = 1,312.05 : x
  2. Step 2: Convert to fraction form
    2,374.21/3,276.34 = 1,312.05/x
  3. Step 3: Cross multiply
    2,374.21x = 3,276.34 × 1,312.05
  4. Step 4: Simplify right side
    2,374.21x = 4,298,721.90
  5. Step 5: Solve for x
    x = 4,298,721.90/2,374.21
  6. Step 6: Final answer
    x = 1,810.59

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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.