Home / 2,475.02-3,415.38-1,355.73

Finding the Fourth Proportional to 2,475.02, 3,415.38 and 1,355.73

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Solution

The fourth proportional to 2,475.02, 3,415.38 and 1,355.73 is: 1,870.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,475.02 : 3,415.38 = 1,355.73 : x
  2. Step 2: Convert to fraction form
    2,475.02/3,415.38 = 1,355.73/x
  3. Step 3: Cross multiply
    2,475.02x = 3,415.38 × 1,355.73
  4. Step 4: Simplify right side
    2,475.02x = 4,630,333.13
  5. Step 5: Solve for x
    x = 4,630,333.13/2,475.02
  6. Step 6: Final answer
    x = 1,870.83

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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.