Home / 2,101.19-2,899.51-1,156.79

Finding the Fourth Proportional to 2,101.19, 2,899.51 and 1,156.79

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Solution

The fourth proportional to 2,101.19, 2,899.51 and 1,156.79 is: 1,596.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.19 : 2,899.51 = 1,156.79 : x
  2. Step 2: Convert to fraction form
    2,101.19/2,899.51 = 1,156.79/x
  3. Step 3: Cross multiply
    2,101.19x = 2,899.51 × 1,156.79
  4. Step 4: Simplify right side
    2,101.19x = 3,354,128.53
  5. Step 5: Solve for x
    x = 3,354,128.53/2,101.19
  6. Step 6: Final answer
    x = 1,596.30

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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.