Home / 2,101.17-2,899.65-1,157.01

Finding the Fourth Proportional to 2,101.17, 2,899.65 and 1,157.01

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Solution

The fourth proportional to 2,101.17, 2,899.65 and 1,157.01 is: 1,596.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.17 : 2,899.65 = 1,157.01 : x
  2. Step 2: Convert to fraction form
    2,101.17/2,899.65 = 1,157.01/x
  3. Step 3: Cross multiply
    2,101.17x = 2,899.65 × 1,157.01
  4. Step 4: Simplify right side
    2,101.17x = 3,354,924.05
  5. Step 5: Solve for x
    x = 3,354,924.05/2,101.17
  6. Step 6: Final answer
    x = 1,596.69

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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.