Home / 2,977.48-4,108.78-1,651.15

Finding the Fourth Proportional to 2,977.48, 4,108.78 and 1,651.15

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Solution

The fourth proportional to 2,977.48, 4,108.78 and 1,651.15 is: 2,278.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.48 : 4,108.78 = 1,651.15 : x
  2. Step 2: Convert to fraction form
    2,977.48/4,108.78 = 1,651.15/x
  3. Step 3: Cross multiply
    2,977.48x = 4,108.78 × 1,651.15
  4. Step 4: Simplify right side
    2,977.48x = 6,784,210.01
  5. Step 5: Solve for x
    x = 6,784,210.01/2,977.48
  6. Step 6: Final answer
    x = 2,278.51

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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.