Home / 2,977.10-4,108.98-1,899.68

Finding the Fourth Proportional to 2,977.10, 4,108.98 and 1,899.68

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Solution

The fourth proportional to 2,977.10, 4,108.98 and 1,899.68 is: 2,621.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.10 : 4,108.98 = 1,899.68 : x
  2. Step 2: Convert to fraction form
    2,977.10/4,108.98 = 1,899.68/x
  3. Step 3: Cross multiply
    2,977.10x = 4,108.98 × 1,899.68
  4. Step 4: Simplify right side
    2,977.10x = 7,805,747.13
  5. Step 5: Solve for x
    x = 7,805,747.13/2,977.10
  6. Step 6: Final answer
    x = 2,621.93

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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.