Home / 2,286.77-3,157.65-1,543.19

Finding the Fourth Proportional to 2,286.77, 3,157.65 and 1,543.19

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Solution

The fourth proportional to 2,286.77, 3,157.65 and 1,543.19 is: 2,130.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.77 : 3,157.65 = 1,543.19 : x
  2. Step 2: Convert to fraction form
    2,286.77/3,157.65 = 1,543.19/x
  3. Step 3: Cross multiply
    2,286.77x = 3,157.65 × 1,543.19
  4. Step 4: Simplify right side
    2,286.77x = 4,872,838.12
  5. Step 5: Solve for x
    x = 4,872,838.12/2,286.77
  6. Step 6: Final answer
    x = 2,130.89

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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.