Home / 2,014.02-2,778.99-1,129.50

Finding the Fourth Proportional to 2,014.02, 2,778.99 and 1,129.50

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Solution

The fourth proportional to 2,014.02, 2,778.99 and 1,129.50 is: 1,558.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,014.02 : 2,778.99 = 1,129.50 : x
  2. Step 2: Convert to fraction form
    2,014.02/2,778.99 = 1,129.50/x
  3. Step 3: Cross multiply
    2,014.02x = 2,778.99 × 1,129.50
  4. Step 4: Simplify right side
    2,014.02x = 3,138,869.21
  5. Step 5: Solve for x
    x = 3,138,869.21/2,014.02
  6. Step 6: Final answer
    x = 1,558.51

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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.